#sql programming web development

[ldsengineers]

SQL Programming Development Company in the USA

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[codingquill]

SQL Fundamentals #1: SQL Data Definition

Last year in college , I had the opportunity to dive deep into SQL. The course was made even more exciting by an amazing instructor . Fast forward to today, and I regularly use SQL in my backend development work with PHP. Today, I felt the need to refresh my SQL knowledge a bit, and that's why I've put together three posts aimed at helping beginners grasp the fundamentals of SQL.

Understanding Relational Databases

Let's Begin with the Basics: What Is a Database?

Simply put, a database is like a digital warehouse where you store large amounts of data. When you work on projects that involve data, you need a place to keep that data organized and accessible, and that's where databases come into play.

Exploring Different Types of Databases

When it comes to databases, there are two primary types to consider: relational and non-relational.

Relational Databases: Structured Like Tables

Think of a relational database as a collection of neatly organized tables, somewhat like rows and columns in an Excel spreadsheet. Each table represents a specific type of information, and these tables are interconnected through shared attributes. It's similar to a well-organized library catalog where you can find books by author, title, or genre.

Key Points:

Tables with rows and columns.

Data is neatly structured, much like a library catalog.

You use a structured query language (SQL) to interact with it.

Ideal for handling structured data with complex relationships.

Non-Relational Databases: Flexibility in Containers

Now, imagine a non-relational database as a collection of flexible containers, more like bins or boxes. Each container holds data, but they don't have to adhere to a fixed format. It's like managing a diverse collection of items in various boxes without strict rules. This flexibility is incredibly useful when dealing with unstructured or rapidly changing data, like social media posts or sensor readings.

Key Points:

Data can be stored in diverse formats.

There's no rigid structure; adaptability is the name of the game.

Non-relational databases (often called NoSQL databases) are commonly used.

Ideal for handling unstructured or dynamic data.

Now, Let's Dive into SQL:

SQL is a :

Data Definition language ( what todays post is all about )

Data Manipulation language

Data Query language

Task: Building and Interacting with a Bookstore Database

Setting Up the Database

Our first step in creating a bookstore database is to establish it. You can achieve this with a straightforward SQL command:

CREATE DATABASE bookstoreDB;

SQL Data Definition

As the name suggests, this step is all about defining your tables. By the end of this phase, your database and the tables within it are created and ready for action.

1 - Introducing the 'Books' Table

A bookstore is all about its collection of books, so our 'bookstoreDB' needs a place to store them. We'll call this place the 'books' table. Here's how you create it:

CREATE TABLE books ( -- Don't worry, we'll fill this in soon! );

Now, each book has its own set of unique details, including titles, authors, genres, publication years, and prices. These details will become the columns in our 'books' table, ensuring that every book can be fully described.

Now that we have the plan, let's create our 'books' table with all these attributes:

CREATE TABLE books ( title VARCHAR(40), author VARCHAR(40), genre VARCHAR(40), publishedYear DATE, price INT(10) );

With this structure in place, our bookstore database is ready to house a world of books.

2 - Making Changes to the Table

Sometimes, you might need to modify a table you've created in your database. Whether it's correcting an error during table creation, renaming the table, or adding/removing columns, these changes are made using the 'ALTER TABLE' command.

For instance, if you want to rename your 'books' table:

ALTER TABLE books RENAME TO books_table;

If you want to add a new column:

ALTER TABLE books ADD COLUMN description VARCHAR(100);

Or, if you need to delete a column:

ALTER TABLE books DROP COLUMN title;

3 - Dropping the Table

Finally, if you ever want to remove a table you've created in your database, you can do so using the 'DROP TABLE' command:

DROP TABLE books;

To keep this post concise, our next post will delve into the second step, which involves data manipulation. Once our bookstore database is up and running with its tables, we'll explore how to modify and enrich it with new information and data. Stay tuned ...

Part2

[mechanical-moron]

Programmers, Web designers, game developers, anyone else who does stuff with numbers on a computer screen.....curious to know if you guys ever dream in code, and if so, do you like it? I for one do not find it to be particularly enjoyable but want to hear what others have to say lol.

[attitudetallyacademy]

Web Development Roadmap for Students to Get Hired Fast

Introduction

In today’s digital era, web development is a career with vast opportunities and rapid growth. If you're a student eager to build a strong foundation and get hired quickly in this competitive industry, having a clear roadmap is crucial. This guide will walk you through essential steps and skills to master, helping you transition from a beginner to a confident web developer ready for the job market.

Step 1: Learn the Basics of Web Designing and Development

Before diving into coding, it's important to understand the fundamentals of web designing and development. Enroll in a web designing course or web designing coaching institute to gain hands-on experience with HTML, CSS, and JavaScript. These core technologies are the building blocks of any website and are crucial to becoming a skilled web developer.

Many students prefer web designing classes or web designing training institute to get structured learning with expert guidance. This foundational knowledge will help you understand how websites are built and styled.

Step 2: Master Frontend and Backend Development

Once comfortable with the basics, focus on frontend development, where you create the visible parts of a website users interact with. Skills like responsive design and working with frameworks such as React or Angular are highly valued.

Simultaneously, learning backend development — which deals with servers, databases, and application logic — is important. Consider joining a web development course or web development training institute to explore server-side languages like Node.js, PHP, or Python.

For a more comprehensive skill set, look into a full stack web development course in Yamuna Vihar or full stack web development training. Full stack developers, who handle both frontend and backend tasks, are in high demand.

Step 3: Explore UI/UX Design Fundamentals

Understanding user interface (UI) and user experience (UX) design can set you apart from other developers. This knowledge helps you build websites that are not only functional but also user-friendly and visually appealing.

Enroll in ui/ux courses with certificate in Yamuna Vihar or user interface design course to get started. These courses cover UX design fundamentals and offer certifications that add value to your portfolio.

You can also find ui ux design certification and ui ux designing coaching centre in Yamuna Vihar to deepen your skills in this area.

Step 4: Gain Practical Experience and Build a Portfolio

Theory is important, but practical experience is key to getting hired fast. Work on real projects, either through internships or freelance gigs, to apply your knowledge.

Look for web development coaching centre or web development classes that emphasize project work and portfolio development. A strong portfolio showcasing websites or applications you’ve built will impress potential employers.

Step 5: Learn Programming Languages like Python and Java

For backend and full stack roles, programming languages like Python and Java are essential. Join a python programming course or java full stack developer course to build proficiency.

These courses often offer python certification course or full stack developer certification , which help validate your skills to recruiters.

Step 6: Prepare for Interviews and Stay Updated

Landing your first job requires interview preparation. Practice coding problems, understand common interview questions, and be ready to explain your projects.

Stay updated with the latest technologies by attending workshops or joining web designing coaching centre in Uttam Nagarand full stack web development coaching institute.

Final Thoughts

Starting your journey with the right training at reputed institutes, such as web designing coaching in Yamuna Vihar or full stack developer training , is vital. Combining technical skills with UI/UX knowledge and real-world experience dramatically increases your chances to get hired quickly.

Remember, consistency and continuous learning are key in the fast-evolving web development industry. Follow this roadmap, practice regularly, and soon you’ll be ready to take on exciting opportunities in web development.

If you're looking for quality web development training or web designing course in Uttam Nagar, focus on institutes that offer practical projects, updated curriculum, and placement assistance to boost your career growth effectively.

Suggested Links: –

Oracle Database Administration

MY SQL Training

PHP Development

[stiitch]

Adopting More Open-Minded Approaches to Databases

Recently, I was introduced to time series databases such as InfluxDB. It made me realize that I haven't really broadened my understanding on databases and available options too much at all since I learned SQL in college. I don't have an in-depth grasp on time series databases, but after playing with the open source version of InfluxDB I was pretty impressed.

Features

InfluxDB offers a fairly well thought out product. As a NoSQL database, it doesn't have standard tables. Instead, it stores datapoints at a specific timestamp. That timestamp identifies a point in any given data series. Your writes can choose how granular you want your timestamp to be (ie. attribute data to a minute, second, millisecond, etc.).

BUCKET - you can create multiple buckets to write data to

MEASUREMENT - you name what kind of measurement this is

Now, you could have multiple measurements happening at a single timestamp. In this case, you would have different tags separating your data.

Lets say you saw a litter of like 8 cats. They were really fucking cute and you weren't gonna let them just rot on the street. Alright, you bring them home and you gotta feed them. You make an auto-feeding IoT device. You suspect your hoodlum street cats of stealing from the source though. So, you log the food your device spits out. Suppose your device has cat detection too. Each time a cat comes, you can tell which cat it is.

You can have the tag name along with the measurement of how many kibbles dispensed. This might look like this:

food_dispensed,name=luna pellets=28 1434055562000000000

So the measurement is called "food_dispensed", the name tag is set to "luna", and the field "pellets" has a value of 28.

Limitations

Of course InfluxDB isn't perfect. There's rarely a one-size-fits-all solution in tech. InfluxDB offers create and retrieve operations that are very easy and nice to use along with your choice of many client libraries and 2 query language options. However, if you need to use Update and Destroy operations, you're out of luck. They're very optimized for speed so they offer none.

Another known issue is data with high cardinality. Luckily, there are other options to choose from such as TimescaleDB which offers promising benchmarks over InfluxDB with regard to cardinalty.

Polyglot Persistence

As more unique services come out more frequently then ever, it feels like applications need to start leveraging every small piece of innovation wherever they can. To this end, we see applications broken into smaller microservices so that different services can use different tools to improve the work they do. Why would databases be any different? I'm no the first person who thought of this and it's an idea that's been around for quite a while. The first I read about it was here on Martin Fowler's blog.

With developers using a lot of distributed systems, it makes sense that each part of the whole may have different databasing needs. I was genuinely subscribed to the idea that Postgresql was enough and I would be good. And Postgresql is powerful, but there are situations where NoSQL databases make sense even if it's just for convenience sake. Maintainability is also an issue to consider to ensure a longer lifetime for your app.

Although it may seem intimidating keeping services outputting to different databases, it's worth looking into message brokers. Many databases can integrate well with message brokers like Kafka in order to provide excellent data replication or near real-time updates between different systems.

Conclusion

So there's a lot out there to explore and understand better. As a developer, I'm trying to figure out where to best spend my time to improve my skillset. I don't want to get bogged down to the minute details but I also don't want to gloss over learning opportunities either. Seeing some of the things I've been looking into this week along with my own thoughts written out helps me get more perspective. If you stayed till the end of this, I hope that this helps you in some way.

[vtechiepteltd]

Elevate your skills with V-Techie! Explore a diverse range of online courses with certifications, including Data Science, Full Stack Development, Python Mastery, Web Designing, and more. Join our expert-led programs for a transformative learning experience and unlock new career opportunities. Your journey to expertise begins at V-Techie.

[nishtha135]

Which coding languages should I learn to boost my IT career opportunities?

A career in IT needs a mix of versatile programming languages. Here are some of the most essential ones:

Python – Easy to learn and widely used for data science, machine learning, web development, and automation.

JavaScript – Key for web development, allowing interactive websites and backend work with frameworks like Node.js.

Java – Known for stability, popular for Android apps, enterprise software, and backend development.

C++ – Great for systems programming, game development, and areas needing high performance.

SQL – Essential for managing and querying databases, crucial for data-driven roles.

C# – Common in enterprise environments and used in game development, especially with Unity.

[codingquill]

SQL Fundamentals #2: SQL Data Manipulation

In our previous database exploration journey, SQL Fundamentals #1: SQL Data Definition, we set the stage by introducing the "books" table nestled within our bookstore database. Currently, our table is empty, Looking like :

books

| title | author | genre | publishedYear | price |

Data manipulation

Now, let's embark on database interaction—data manipulation. This is where the magic happens, where our "books" table comes to life, and we finish our mission of data storage.

Inserting Data

Our initial task revolves around adding a collection of books into our "books" table. we want to add the book "The Great Gatsby" to our collection, authored F. Scott Fitzgerald. Here's how we express this in SQL:

INSERT INTO books(title, author, genre, publishedYear, price) VALUES('The Great Gatsby', 'F. Scott Fitzgerald', 'Classic', 1925, 10.99);

Alternatively, you can use a shorter form for inserting values, but be cautious as it relies on the order of columns in your table:

INSERT INTO books VALUES('The Great Gatsby', 'F. Scott Fitzgerald', 'Classic', 1925, 10.99);

Updating data

As time goes on, you might find the need to modify existing data in our "books" table. To accomplish this, we use the UPDATE command.For example :

UPDATE books SET price = 12.99 WHERE title = 'The Great Gatsby';

This SQL statement will locate the row with the title "The Great Gatsby" and modify its price to $12.99.

We'll discuss the where clause in (SQL fundamentals #3)

Deleting data

Sometimes, data becomes obsolete or irrelevant, and it's essential to remove it from our table. The DELETE FROM command allows us to delete entire rows from our table.For example :

DELETE FROM books WHERE title = 'Moby-Dick';

This SQL statement will find the row with the title "Moby-Dick" and remove it entirely from your "books" table.

To maintain a reader-friendly and approachable tone, I'll save the discussion on the third part of SQL, which focuses on data querying, for the upcoming post. Stay tuned ...

[allaboutkeyingo]

SQL Server 2022 Edition and License instructions

SQL Server 2022 Editions:

• Enterprise Edition is ideal for applications requiring mission critical in-memory performance, security, and high availability

• Standard Edition delivers fully featured database capabilities for mid-tier applications and data marts

SQL Server 2022 is also available in free Developer and Express editions. Web Edition is offered in the Services Provider License Agreement (SPLA) program only.

And the Online Store Keyingo Provides the SQL Server 2017/2019/2022 Standard Edition.

SQL Server 2022 licensing models 

SQL Server 2022 offers customers a variety of licensing options aligned with how customers typically purchase specific workloads. There are two main licensing models that apply to SQL Server:  PER CORE: Gives customers a more precise measure of computing power and a more consistent licensing metric, regardless of whether solutions are deployed on physical servers on-premises, or in virtual or cloud environments. 

• Core based licensing is appropriate when customers are unable to count users/devices, have Internet/Extranet workloads or systems that integrate with external facing workloads.

• Under the Per Core model, customers license either by physical server (based on the full physical core count) or by virtual machine (based on virtual cores allocated), as further explained below.

SERVER + CAL: Provides the option to license users and/or devices, with low-cost access to incremental SQL Server deployments.   

• Each server running SQL Server software requires a server license.

• Each user and/or device accessing a licensed SQL Server requires a SQL Server CAL that is the same version or newer – for example, to access a SQL Server 2019 Standard Edition server, a user would need a SQL Server 2019 or 2022 CAL.

Each SQL Server CAL allows access to multiple licensed SQL Servers, including Standard Edition and legacy Business Intelligence and Enterprise Edition Servers.SQL Server 2022 Editions availability by licensing model:  

Physical core licensing – Enterprise Edition 

• Customers can deploy an unlimited number of VMs or containers on the server and utilize the full capacity of the licensed hardware, by fully licensing the server (or server farm) with Enterprise Edition core subscription licenses or licenses with SA coverage based on the total number of physical cores on the servers.

• Subscription licenses or SA provide(s) the option to run an unlimited number of virtual machines or containers to handle dynamic workloads and fully utilize the hardware’s computing power.

Virtual core licensing – Standard/Enterprise Edition 

When licensing by virtual core on a virtual OSE with subscription licenses or SA coverage on all virtual cores (including hyperthreaded cores) on the virtual OSE, customers may run any number of containers in that virtual OSE. This benefit applies both to Standard and Enterprise Edition.

Licensing for non-production use 

SQL Server 2022 Developer Edition provides a fully featured version of SQL Server software—including all the features and capabilities of Enterprise Edition—licensed for  development, test and demonstration purposes only.  Customers may install and run the SQL Server Developer Edition software on any number of devices. This is  significant because it allows customers to run the software  on multiple devices (for testing purposes, for example)  without having to license each non-production server  system for SQL Server.  

A production environment is defined as an environment  that is accessed by end-users of an application (such as an  Internet website) and that is used for more than gathering  feedback or acceptance testing of that application.   

SQL Server 2022 Developer Edition is a free product !

[avaquava250]

Hi, I just got into tech (actually 1 year in but I still feel like I don't know anything).

I learnt python, R, SQL, Tableau and concepts in Data Structures, Algorithms.

[Just the Basic level of the listed.]

But I can't write my own programs on python or create anything.

I was hella impressed by your microprocessor project, and when I took up tech (ai and data science) I assumed I would do something like that or at least code.

Now, I am just venting but where do I start, how do I make projects what are some interesting projects, what should I learn? A lot of my seniors tell me to have a wide range of knowledge like focus on one thing by depth but add other things. For example: you can study data analytics in depth but have some knowledge in ethical hacking and web development etc. Like an all rounder.

Wow ok a lot to unpack here, I'll get started

Lots of places recommend that you start with Arduino, as there are a lot of good tutorials out there. I somewhat disagree

I think that raspberry pi is better because it's usually a lot cheaper to buy the stuff you want to play around with

But an even cooler way to do it, go to wokwi.com and start a project on a Raspberry Pi Pico (make sure it's the micropython version) and then you can get started there

Google something like "Blink led with Pi Pico micropython" and there will be a tutorial or two

Then, once you've played around for a while you can buy a Pi Pico for very little money and see your stuff work irl!

If you need any more help or have any questions, feel free to DM me and I'll see what I can do

[sindhu14]

What is Python, How to Learn Python?

What is Python?

Python is a high-level, interpreted programming language known for its simplicity and readability. It is widely used in various fields like: ✅ Web Development (Django, Flask) ✅ Data Science & Machine Learning (Pandas, NumPy, TensorFlow) ✅ Automation & Scripting (Web scraping, File automation) ✅ Game Development (Pygame) ✅ Cybersecurity & Ethical Hacking ✅ Embedded Systems & IoT (MicroPython)

Python is beginner-friendly because of its easy-to-read syntax, large community, and vast library support.

How Long Does It Take to Learn Python?

The time required to learn Python depends on your goals and background. Here’s a general breakdown:

1. Basics of Python (1-2 months)

If you spend 1-2 hours daily, you can master:

Variables, Data Types, Operators

Loops & Conditionals

Functions & Modules

Lists, Tuples, Dictionaries

File Handling

Basic Object-Oriented Programming (OOP)

2. Intermediate Level (2-4 months)

Once comfortable with basics, focus on:

Advanced OOP concepts

Exception Handling

Working with APIs & Web Scraping

Database handling (SQL, SQLite)

Python Libraries (Requests, Pandas, NumPy)

Small real-world projects

3. Advanced Python & Specialization (6+ months)

If you want to go pro, specialize in:

Data Science & Machine Learning (Matplotlib, Scikit-Learn, TensorFlow)

Web Development (Django, Flask)

Automation & Scripting

Cybersecurity & Ethical Hacking

Learning Plan Based on Your Goal

📌 Casual Learning – 3-6 months (for automation, scripting, or general knowledge) 📌 Professional Development – 6-12 months (for jobs in software, data science, etc.) 📌 Deep Mastery – 1-2 years (for AI, ML, complex projects, research)

Scope @ NareshIT:

At NareshIT’s Python application Development program you will be able to get the extensive hands-on training in front-end, middleware, and back-end technology.

It skilled you along with phase-end and capstone projects based on real business scenarios.

Here you learn the concepts from leading industry experts with content structured to ensure industrial relevance.

An end-to-end application with exciting features

Earn an industry-recognized course completion certificate.

For more details:

[pancakeke]

does anyone have experience confronting their employer about your responsibilities getting wildly out of sync with your job title? my title is supply chain analyst but more than 50% of my work is not supply chain related at all anymore. I'm being treated mostly as a data analyst. data analyst salaries are 10% higher than supply chain analysts salaries in my area plus there are many more job opportunities for data analysts. I want a title change.

also does anyone have experience writing a resume when your responsibilities are not related to your title? should I just say I'm a data analyst because that's the work I'm doing or is there some special section I can add noting secondary work as an unofficial data analyst. there is other shit I do very often too that is barely related to either role.

anyone who has been following me for a while is gonna think I'm sooo late to this realization but it's getting pretty clear to me that my workplace is not going to stop pushing me into roles that I'm not appropriately compensated for, and because these roles are not official I will never receive any support, even when I explicitly request it. I have already been denied support multiple times.

this isn't just random people asking me to do one-time odd jobs either. our COO, CFO, and multiple directors ask me directly to do shit like investigate errors in our website and its tools to uncover what is causing data to display incorrectly. this is to shift labor off our web dev team and onto me, why us paid way less than a developer. I do NOT know ANY programming, I just know the database. this has happened five or six times now.

I also manage customer issues directly with the customers because our sales team does not appropriately train anyone in their department. I create orders for them too because they can not be trusted to enter them (not because they're untrained, but because they were not entering these intentionally). I provide records and reporting for accounting audits. I build weird calculators and generators in Excel for every department except two (IT and web dev) because those two can't justify devoting time to those projects and integrating them into our site. I create extremely weird queries to trace information that out database does not track appropriately (and this will never be fixed).

there are zero docs for anything I do except the ones I personally wrote, and only very limited notes scattered around. I was never trained and only picked sql and stuff up cause when I was a buyer digging into data helped me solve problems more efficiently. I have been begging web dev to tell me when they update anything because they keep breaking extremely serious tools but they have been ghosting me entirely. literally all they have to do is CC me on update emails but they won't do it.

also there isn't anyone else in the company who is proficient in sql and stuff (outside dev, and they're miles above me) to back me up so if I'm overloaded or need other help I'm shit out of luck. this makes taking PTO a fucking nightmare too because I'm always in the middle of helping someone out of a fucking fire and everyone does that shit where they say I can take PTO any time I want without worrying but then constantly assign me with critical tasks and demand results asap.

It is beyond time for me to be realistic about this job and what I want to do with myself 40 hours a week until I die, so I need to start working toward either making my current situation more tolerable or going elsewhere.

[aimerscomputer]

Diploma in Computer Application

A Diploma in Computer Application (DCA) is a popular short-term course that offers a solid foundation in computer fundamentals and applications. It's designed to equip individuals with the necessary skills to work in various IT-related roles.

Why Choose a DCA Course?

Quick and Efficient: DCA courses are typically shorter in duration, making it a time-effective way to acquire essential computer skills.

Practical Learning: The curriculum emphasizes hands-on training, allowing students to gain practical experience with software applications and hardware components.

Diverse Career Opportunities: A DCA certification opens doors to a wide range of job roles, including:

Data Entry Operator

Computer Operator

Web Designer

Software Tester

Technical Support Specialist

IT Assistant

Foundation for Further Studies: A DCA can serve as a stepping stone for higher education in computer science, information technology, or related fields.

Core Subjects in a DCA Course

Computer Fundamentals: Basic concepts of computers, hardware components, and software applications.

Operating Systems: Understanding and using various operating systems like Windows, Linux, and macOS.

Microsoft Office Suite: Proficiency in MS Word, Excel, PowerPoint, and Outlook.

Internet and Web Technologies: Basics of the internet, web browsing, email, and web development tools like HTML, CSS, and JavaScript.

Database Management Systems: Introduction to database concepts and SQL.

Programming Languages: Basic programming concepts in languages like C, C++, or Python.

How to Choose a Good DCA Institute

When selecting a DCA institute, consider the following factors:

Experienced Faculty: Ensure that the institute has experienced and knowledgeable faculty members.

Infrastructure: Well-equipped computer labs and other facilities are essential for practical learning.

Placement Assistance: A good institute should offer job placement assistance to help students secure employment.

Course Curriculum: The curriculum should be up-to-date and relevant to industry standards.

Fee Structure: Compare fees and financial aid options offered by different institutes.

By pursuing a Diploma in Computer Application, you can enhance your digital literacy, boost your career prospects, and stay relevant in the ever-evolving technological landscape.