#expression2

[priestfrommidnightmass]

sometimes writing abt an actor/character you know really well is difficult because it can be so difficult to write their facial expressions. sometimes i wish i had a collection of every single expression i’m referencing and that i could attach it to each sentence like footnotes

[thellawtoknow]

Criminal Psychology

Topic: Understanding Deception: Insights from Criminal Psychology Topic: Understanding Deception: Insights from Criminal Psychology1. Behavioral Cues and Nonverbal Communication1. Facial Expressions: Insights from Micro-Expressions2. Body Language: Gestures, Posture, and Eye Movements3. Speech Patterns: Clues in Verbal Expression2. Psychophysiological Responses1. The Science Behind…

[tccicomputercoaching]

Operator in C

In C programming, operators are symbols that tell the compiler to perform specific mathematical or logical functions. Operators in C can be classified into several categories:

### 1. Arithmetic Operators

These operators perform arithmetic operations on variables and data.

```c

+   // Addition

-   // Subtraction

*   // Multiplication

/   // Division

%   // Modulus (remainder of division)

```

Example:

```c

int a = 10, b = 3;

int sum = a + b;       // 13

int diff = a - b;      // 7

int prod = a * b;      // 30

int quotient = a / b;  // 3

int remainder = a % b; // 1

```

### 2. Relational Operators

These operators compare two values and return true or false.

```c

==  // Equal to

!=  // Not equal to

>   // Greater than

<   // Less than

>=  // Greater than or equal to

<=  // Less than or equal to

```

Example:

```c

int a = 10, b = 3;

int result1 = (a == b);  // 0 (false)

int result2 = (a != b);  // 1 (true)

int result3 = (a > b);   // 1 (true)

int result4 = (a < b);   // 0 (false)

int result5 = (a >= b);  // 1 (true)

int result6 = (a <= b);  // 0 (false)

```

### 3. Logical Operators

These operators are used to combine conditional statements.

```c

&&  // Logical AND

||  // Logical OR

!   // Logical NOT

```

Example:

```c

int a = 10, b = 3, c = 0;

int result1 = (a > b && b > c);  // 1 (true)

int result2 = (a > b || b > c);  // 1 (true)

int result3 = !(a > b);          // 0 (false)

```

### 4. Bitwise Operators

These operators perform bit-level operations on data.

```c

&   // Bitwise AND

|   // Bitwise OR

^   // Bitwise XOR

~   // Bitwise NOT

<<  // Left shift

>>  // Right shift

```

Example:

```c

int a = 5;      // 0101 in binary

int b = 3;      // 0011 in binary

int result1 = a & b;  // 0001 (1)

int result2 = a | b;  // 0111 (7)

int result3 = a ^ b;  // 0110 (6)

int result4 = ~a;     // 1010 (binary for -6 in 2's complement)

int result5 = a << 1; // 1010 (10)

int result6 = a >> 1; // 0010 (2)

```

### 5. Assignment Operators

These operators assign values to variables.

```c

=   // Assign

+=  // Add and assign

-=  // Subtract and assign

*=  // Multiply and assign

/=  // Divide and assign

%=  // Modulus and assign

```

Example:

```c

int a = 10;

a += 5;  // a = a + 5, now a is 15

a -= 3;  // a = a - 3, now a is 12

a *= 2;  // a = a * 2, now a is 24

a /= 4;  // a = a / 4, now a is 6

a %= 5;  // a = a % 5, now a is 1

```

### 6. Increment and Decrement Operators

These operators increase or decrease the value of a variable by one.

```c

++  // Increment

--  // Decrement

```

Example:

```c

int a = 10;

a++;  // a is now 11

a--;  // a is now 10 again

int b = 5;

int c = ++b;  // c is 6, b is 6 (pre-increment)

int d = b--;  // d is 6, b is 5 (post-decrement)

```

### 7. Conditional (Ternary) Operator

This operator evaluates a condition and returns one of two values.

```c

condition ? expression1 : expression2

```

Example:

```c

int a = 10, b = 5;

int max = (a > b) ? a : b;  // max is 10

```

### 8. Special Operators

- **Comma Operator**: Used to separate two or more expressions.

- **Sizeof Operator**: Returns the size of a data type or variable.

- **Pointer Operators**: `&` (address of), `*` (value at address).

Example:

```c

int a = 10, b = 5;

int result = (a++, b++);  // result is 5, a is 11, b is 6

int size = sizeof(a);  // size is typically 4 (depending on the system)

int *p = &a;  // p is a pointer to a

int value = *p;  // value is 11

```

These are some of the fundamental operators in C, which are essential for performing various operations and building complex expressions in your programs.

TCCI Computer classes provide the best training in all computer courses online and offline through different learning methods/media located in Bopal Ahmedabad and ISCON Ambli Road in Ahmedabad.

For More Information:      

Call us @ +91 98256 18292

Visit us @ http://tccicomputercoaching.com/

[qocsuing]

The Future of Health: An Overview of NMN Supplements in 2023

The Future of Health: An Overview of NMN Supplements in 2023 In the realm of health and wellness, NMN (nicotinamide mononucleotide) has emerged as a compound of interest. It has evolved from being primarily marketed as a dietary supplement to being recognized for its potential health benefits and contribution to longevity and health span.Get more news about best nmn supplement 2023,you can vist our website!

NMN is a precursor of NAD+, a molecule critical for life and significant for many aging pathways. The awareness of longevity and healthspan among the public is growing at an incredible rate, and so too is the appetite for taking steps to move the needle on youthspan, healthy aging, and biological age.

One of the key reasons NMN has gained popularity is due to its role in increasing NAD+ levels3. NAD+ is involved in myriad critical cell functions, including cell growth and repair, metabolism, DNA repair and survival, cellular respiration, and regulation of gene expression2. However, NAD+ levels significantly decrease with age, and this decline is associated with the development of age-related diseases such as cardiovascular, neurological, and metabolic issues.

When it comes to NMN, finding the best option is essential. Hence, experts have curated a list of the top NMN supplements. These supplements were chosen considering NMN bioavailability, price, quality, customer trust, and formulation.

Some of the top-rated NMN supplements include Purovitalis, Wonderfeel, GenuinePurity™, Omre, partiQlar, NOVOS, and VitalityPRO1. Each of these brands offers unique formulations and specific benefits. For instance, Purovitalis provides high-purity NMN produced in Europe within GMP-certified facilities1. On the other hand, Wonderfeel Youngr NMN is made in the USA and meets all the good manufacturing standards.

In conclusion, NMN supplements have shown promising potential in promoting health and longevity. As research continues to evolve, the future of health may indeed lie in compounds like NMN that can help us lead longer, healthier lives.

[tommaxxott]

5 Reasons T.E.Ott 👨‍🎨 Blogs

Why do you blog?1. Self expression2. Communication3. Promotion4. Depository of Thoughts5. Fun Self Expression ~ I am a creator. Whether it’s paint, words, or match sticks (lol), the act of putting different parts together and constructing my own design fascinates me. Indeed, if there is a more interesting activity in the world other than this, I am at a loss for what it could…

[akari08biyori]

[Repost] LINE stickers "Cute Caterpillars-Honorific expression2” Butterfly or moth larvae, Namiageha-kun, Shinjusan-chan, Kiobiedashaku-kun, Shirohitori-kun, Asagimadara-chan honorific stickers #2.

Go to buy👇 https://store.line.me/stickershop/product/13430268/en

[charky-barky]

HP-12C Calculator Virtual Simulation (Part 1, 12/3/2019)

So yeah, here’s an intro to one of my other side-projects: an HP-12C simulation.

The gist of this project’s background:

About a few months ago, I found an HP-12C calculator laying around in my house, and decided to play with it and see what it’s capable of.

(Definition: The HP-12C is basically a popular financial, programmable calculator that was released in 1981 by Hewlett Packard.)

Throughout the past few months with some casual, occasional use of the calculator, I had grown quite interested in its inner workings.

Just for fun, back around late October, I used the Expression2 programming language in Garry’s Mod to visually recreate the HP-12C in the most practical and efficient way possible.

(Definition: Garry’s Mod is a sandbox FPS game for PC, and Expression2 is a programming language for the GMod addon Wiremod)

However, due to school, I had only recently started some serious research-- research that would fit within the small scraps of leisure time I can get my hands on after school-- in order to properly create a functional simulation that could make the visual recreation of the HP-12C actually work and do stuff.

What’s done so far:

Although the visual recreation is mostly finished, you’ll probably only be able to appreciate its actual appearance, instead of the raw code that draws the calculator from scratch with boxes and text.

The actual logic/simulation behind the recreation hasn’t been developed yet, and therefore there is really nothing much to demonstrate.

I have only started to uncover some of the major facets of the HP-12C, one of which is its “Automatic Memory Stack.” Heck, this calculator can even be used for programming, and topic is an entirely different beast.

(EDIT: I have uncovered the HP-12C features before, just blips of information, like how to program and how the calculator roughly works; nothing as proper as this kind of research)

Can you see why I’m so impressed and enthralled by this calculator (probably not because I’m way too nerdy for this kind of stuff for my own good), of how a calculator with only a single-row of numbers and 40 keys can do all of this and a heck of a lot more?)

But that’s all I can really say for now, so carry on; if you’re interested, stay tuned for part 2.

[expression2]

@expression2: What if Pandy eats fries

@pabbley​: pandy would hog all the fries

Full resolution: https://derpibooru.org/1786874

[leedsomics]

Visualizing somatic alterations in spatial transcriptomics data of skin cancer

Tools to visualize genetic alterations within tissues remain underdeveloped despite the growth of spatial transcriptomic technologies, which measure gene expression in different regions of tissues. Since genetic alterations can be detected in RNA-sequencing data, we explored the feasibility of observing somatic alterations in spatial transcriptomics data. Extracting genetic information from spatial transcriptomic data would illuminate the spatial distribution of clones and allow for correlations with regional changes in gene expression to support genotype-phenotype studies. Recent work demonstrates that copy number alterations can be inferred from spatial transcriptomics data1. Here, we describe new software to further enhance the inference of copy number from spatial transcriptomics data. Moreover, we demonstrate that single nucleotide variants are also detectable in spatial transcriptomic data. We applied these approaches to map the location of point mutations, copy number alterations, and allelic imbalances in spatial transcriptomic data of two cutaneous squamous cell carcinomas. We show that both tumors are dominated by a single clone of cells, suggesting that their regional variations in gene expression2 are likely driven by non-genetic factors. Furthermore, we observe mutant cells in histologically normal tissue surrounding one tumor, which were not discernible upon histopathologic evaluation. Finally, we detected mono-allelic expression of immunoglobulin heavy chains in B-cells, revealing clonal populations of plasma cells surrounding one tumor. In summary, we put forward solutions to add the genetic dimension to spatial transcriptomic datasets, augmenting the potential of this new technology. http://dlvr.it/Sf20cd

[qwefbjksfbjksda]

Conditionals in C#

If / Else If / Else Statements

if (expression) { // code block } else if (expression2) { // code block } else { // code block }

Switch / Case Expressions switch (expression) { case x: // code block break; case y: // code block break; default: // code block break; }

Ternary Operators

var result = (expression) ? "returnValueForTrue" : "returnValueForFalse";

[javascript-notes]

conditional statements

if (expression) {   // executed if condition is true } 

else if (expression2){

}

else {   // executed if condition is false }

if is in lowercase letters. Uppercase letters (If or IF) won’t work.

There's another way to do this check using the ? operator: a > b ? condition(a) : condition(b).

[t-baba]

PHP Control Structures and Loops: if, else, for, foreach, while, and More

Today, we're going to discuss control structures and loops in PHP. I'll show you how to use all the main control structures that are supported in PHP, like if, else, for, foreach, while, and more.

What Is a Control Structure?

In simple terms, a control structure allows you to control the flow of code execution in your application. Generally, a program is executed sequentially, line by line, and a control structure allows you to alter that flow, usually depending on certain conditions.

Control structures are core features of the PHP language that allow your script to respond differently to different inputs or situations. This could allow your script to give different responses based on user input, file contents, or some other data.

The following flowchart explains how a control structure works in PHP.

As you can see in the above diagram, first a condition is checked. If the condition is true, the conditional code will be executed. The important thing to note here is that code execution continues normally after conditional code execution.

Let's consider the following example.

In the above example, the program checks whether or not the user is logged in. Based on the user's login status, they will be redirected to either the Login page or the My Account page. In this case, a control structure ends code execution by redirecting users to a different page. This is a crucial ability of the PHP language.

PHP supports a number of different control structures:

if

else

elseif

switch

while

do-while

for

foreach

and more

Let's take a look at a few of these control structures with examples.

Learning PHP Control Structures

In the previous section, we learned the basics of control structures in PHP and their usefulness in application development. In this section, we'll go through a couple of important control structures that you'll end up using frequently in your day-to-day application development.

PHP If Statement

The if construct allows you to execute a piece of code if the expression provided along with it evaluates to true.

Let's have a look at the following example to understand how it actually works.

<?php $age = 50; if ($age > 30) { echo "Your age is greater than 30!"; } ?>

The above example should output the Your age is greater than 30! message since the expression evaluates to true. In fact, if you want to execute only a single statement, the above example can be rewritten as shown in the following snippet without brackets.

<?php $age = 50; if ($age > 30) echo "Your age is greater than 30!"; ?>

On the other hand, if you have more than one statements to execute, you must use brackets, as shown in the following snippet.

<?php if (is_array($user)) { $user_id = isset($user['user_id']) ? $user['user_id'] : ''; $username = isset($user['username']) ? $user['username'] : ''; // and more statements... } ?>

PHP Else Statement

In the previous section, we discussed the if construct, which allows you to execute a piece of code if the expression evaluates to true. On the other hand, if the expression evaluates to false, it won't do anything. More often than not, you also want to execute a different code snippet if the expression evaluates to false. That's where the else statement comes into the picture.

You always use the else statement in conjunction with an if statement. Basically, you can define it as shown in the following pseudo code.

if (expression) { // code is executed if the expression evaluates to TRUE } else { // code is executed if the expression evaluates to FALSE }

Let's revise the previous example to understand how it works.

<?php $age = 50; if ($age < 30) { echo "Your age is less than 30!"; } else { echo "Your age is greater than or equal 30!"; } ?>

So when you have two choices, and one of them must be executed, you can use the if-else construct.

PHP Else If Statement

We can consider the elseif statement as an extension to the if-else construct. If you've got more than two choices to choose from, you can use the elseif statement.

Let's study the basic structure of the elseif statement, as shown in the following pseudo code.

if (expression1) { // code is executed if the expression1 evaluates to TRUE } elseif (expression2) { // code is executed if the expression2 evaluates to TRUE } elseif (expression3) { // code is executed if the expression3 evaluates to TRUE } else { // code is executed if the expression1, expression2 and expression3 evaluates to FALSE, a default choice }

Again, let's try to understand it using a real-world example.

<?php $age = 50; if ($age < 30) { echo "Your age is less than 30!"; } elseif ($age > 30 && $age < 40) { echo "Your age is between 30 and 40!"; } elseif ($age > 40 && $age < 50) { echo "Your age is between 40 and 50!"; } else { echo "Your age is greater than 50!"; } ?>

As you can see in the above example, we have multiple conditions, so we've used a series of elseif statements. In the event that all if conditions evaluate to false, it executes the code provided in the last else statement.

PHP Switch Statement

The switch statement is somewhat similar to the elseif statement which we've just discussed in the previous section. The only difference is the expression which is being checked.

In the case of the elseif statement, you have a set of different conditions, and an appropriate action will be executed based on a condition. On the other hand, if you want to compare a variable with different values, you can use the switch statement.

As usual, an example is the best way to understand the switch statement.

<?php $favourite_site = 'Code'; switch ($favourite_site) { case 'Business': echo "My favourite site is business.tutsplus.com!"; break; case 'Code': echo "My favourite site is code.tutsplus.com!"; break; case 'Web Design': echo "My favourite site is webdesign.tutsplus.com!"; break; case 'Music': echo "My favourite site is music.tutsplus.com!"; break; case 'Photography': echo "My favourite site is photography.tutsplus.com!"; break; default: echo "I like everything at tutsplus.com!"; } ?>

As you can see in the above example, we want to check the value of the $favourite_site variable, and based on the value of the $favourite_site variable we want to print a message.

For each value you want to check with the $favourite_site variable, you have to define the case block. If the value is matched with a case, the code associated with that case block will be executed. After that, you need to use the break statement to end code execution. If you don't use the break statement, script execution will be continued up to the last block in the switch statement.

Finally, if you want to execute a piece of code if the variable's value doesn't match any case, you can define it under the default block. Of course, it's not mandatory—it's just a way to provide a default case.

So that's the story of conditional control structures. We'll discuss loops in PHP in the next section.

Loops in PHP

Loops in PHP are useful when you want to execute a piece of code repeatedly until a condition evaluates to false. So code is executed repeatedly as long as a condition evaluates to true, and as soon as the condition evaluates to false, the script continues executing the code after the loop.

The following flowchart explains how loops work in PHP.

As you can see in the above screenshot, a loop contains a condition. If the condition evaluates to true, the conditional code is executed. After execution of the conditional code, control goes back to the loop condition, and the flow continues until the condition evaluates to false.

In this section, we'll go through the different types of loops supported in PHP.

While Loop in PHP

The while loop is used when you want to execute a piece of code repeatedly until the while condition evaluates to false.

You can define it as shown in the following pseudo code.

while (expression) { // code to execute as long as expression evaluates to TRUE }

Let's have a look at a real-world example to understand how the while loop works in PHP.

<?php $max = 0; echo $i = 0; echo ","; echo $j = 1; echo ","; $result=0; while ($max < 10 ) { $result = $i + $j; $i = $j; $j = $result; $max = $max + 1; echo $result; echo ","; } ?>

If you're familiar with the Fibonacci series, you might recognize what the above program does—it outputs the Fibonacci series for the first ten numbers. The while loop is generally used when you don't know the number of iterations that are going to take place in a loop.

Do-While Loop in PHP

The do-while loop is very similar to the while loop, with the only difference being that the while condition is checked at the end of the first iteration. Thus, we can guarantee that the loop code is executed at least once, irrespective of the result of the while expression.

Let's have a look at the syntax of the do-while loop.

do { // code to execute } while (expression);

Let's go through a real-world to understand possible use-cases where you can use the do-while loop.

<?php $handle = fopen("file.txt", "r"); if ($handle) { do { $line = fgets($handle); // process the line content } while($line !== false); } fclose($handle); ?>

In the above example, we're trying to read a file line by line. Firstly, we've opened a file for reading. In our case, we're not sure if the file contains any content at all. Thus, we need to execute the fgets function at least once to check if a file contains any content. So we can use the do-while loop here. do-while evaluates the condition after the first iteration of the loop.

For Loop in PHP

Generally, the for loop is used to execute a piece of code for a specific number of times. In other words, if you already know the number of times you want to execute a block of code, it's the for loop which is the best choice.

Let's have a look at the syntax of the for loop.

for (expr1; expr2; expr3) { // code to execute }

The expr1 expression is used to initialize variables, and it's always executed. The expr2 expression is also executed in the beginning of a loop, and if it evaluates to true, the loop code is executed. After execution of the loop code, the expr3 is executed. Generally, the expr3 is used to alter the value of a variable which is used in the expr2 expression.

Let's go through the following example to see how it works.

<?php for ($i=1; $i<=10; ++$i) { echo sprintf("The square of %d is %d.</br>", $i, $i*$i); } ?>

The above program outputs the square of the first ten numbers. It initializes $i to 1, repeats as long as $i is less than or equal to 10, and adds 1 to $i at each iteration.

For Each in PHP

The foreach loop is used to iterate over array variables. If you have an array variable, and you want to go through each element of that array, the foreach loop is the best choice.

Let's have a look at a couple of examples.

<?php $fruits = array('apple', 'banana', 'orange', 'grapes'); foreach ($fruits as $fruit) { echo $fruit; echo "<br/>"; } $employee = array('name' => 'John Smith', 'age' => 30, 'profession' => 'Software Engineer'); foreach ($employee as $key => $value) { echo sprintf("%s: %s</br>", $key, $value); echo "<br/>"; } ?>

If you want to access array values, you can use the first version of the foreach loop as shown in the above example. On the other hand, if you want to access both a key and a value, you can do it as shown in the $employee example above.

Breaking Out of the Loop

There are times when you might want to break out of a loop before it runs it course. This can be achieved easily using the break keyword. It will get you out of the current for, foreach, while, do-while or switch structure.

You can also use break to get out of multiple nested loops by supplying a numeric argument. For example, using break 3 will break you out of 3 nested loops. However, you cannot pass a variable as the numeric argument if you are using a PHP version greater than or equal to 5.4.

<?php echo 'Simple Break'; for($i = 1; $i <= 2; $i++) { echo "\n".'$i = '.$i.' '; for($j = 1; $j <= 5; $j++) { if($j == 2) { break; } echo '$j = '.$j.' '; } } /* Simple Break i = 1 j = 1 i = 2 j = 1 */ echo 'Multi-level Break'; for($i = 1; $i <= 2; $i++) { echo "\n".'$i = '.$i.' '; for($j = 1; $j <= 5; $j++) { if($j == 2) { break 2; } echo '$j = '.$j.' '; } } /* Multi-level Break i = 1 j = 1 */ ?>

Another keyword that can interrupt loops in PHP is continue. However this only skips the rest of the current loop iteration instead of breaking out of the loop altogether. Just like break, you can also use a numerical value with continue to specify how many nested loops should it skip for current iteration.

<?php echo 'Simple Continue'; for($i = 1; $i <= 2; $i++) { echo "\n".'$i = '.$i.' '; for($j = 1; $j <= 5; $j++) { if($j == 2) { continue; } echo '$j = '.$j.' '; } } /* Simple Continue i = 1 j = 1 j = 3 j = 4 j = 5 i = 2 j = 1 j = 3 j = 4 j = 5 */ echo 'Multi-level Continue'; for($i = 1; $i <= 2; $i++) { echo "\n".'$i = '.$i.' '; for($j = 1; $j <= 5; $j++) { if($j == 2) { continue 2; } echo '$j = '.$j.' '; } } /* Multi-level Continue i = 1 j = 1 i = 2 j = 1 */ ?>

Conclusion

In this article, we discussed different control structures and loops in PHP. They are an essential part of PHP—or any programming language for that matter.

Learn PHP With a Free Online Course

If you want to learn PHP, check out our free online course on PHP fundamentals!

  In this course, you'll learn the fundamentals of PHP programming. You'll start with the basics, learning how PHP works and writing simple PHP loops and functions. Then you'll build up to coding classes for simple object-oriented programming (OOP). Along the way, you'll learn all the most important skills for writing apps for the web: you'll get a chance to practice responding to GET and POST requests, parsing JSON, authenticating users, and using a MySQL database.

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[everydayread]

Expression is sign, That you are Alive internally too. Feel to think, Think to React, React to Express and Express to feel. #Expression #expressionism #expressions #expressionist #expressionistart #expressionqueen #expressionismart #expressionismo #expressionistic #expressionart #expressionking #expressionkings #expressionisme #expressionse #expressionismabstract #expressionbywords #expressionhair #expressionismus #expressionistpainting #expressionsvinyl #expressionbraids #expressionismeabstracte #expressionismoabstrato #expressionistartist #expressionless #expressionnumbers #expressionoftheday #expressionplastique #expressionsintl #expression2 https://www.instagram.com/p/CE65MmEgc_5/?igshid=1wmqlia0yqcik

[siva3155]

300+ TOP SQLite Interview Questions and Answers

SQLite Interview Questions for freshers experienced :-

1. What is SQLite? SQLite is a relational database management system which is self-contained, server-less and need zero configuration. 2. Who was the designer of SQLite? SQLite was designed by D. Richard Hipp for the purpose of no administration required for operating a program. 3. What are the most important features of SQLite? There are lots of features which make SQLite very popular: SQlite is free of cost. SQLite is server-less. SQLite is flexible. SQLite doesn't need configuration. SQLite is cross-platform. 4. What are the advantages of using SQLite? SQLite is very light weight database. Data storing is very easy and efficient. SQlite is very easy to learn and use. 5. How would you create a database in SQLite? In SQLite, sqlite3 command is used to create database. Syntax: Sqlite3 database_name.db 6. How would you create a table in SQLite database? CREATE TABLE statement is used to create a table in SQLite database. You have to define the columns and data types of each column while creating the table. Syntax: CREATE TABLE database_name.table_name( column1 datatype PRIMARY KEY(one or more columns), column2 datatype, column3 datatype, columnN datatype, ); 7. How would you drop a table in SQLite database? DROP TABLE command is used to delete or permanently drop a table from SQLite database. Syntax: DROP TABLE table_name; 8. How would you create an AUTOINCREMENT field? For autoincrement, you have to declare a column of the table to be INTEGER PRIMARY KEY, then whenever you insert a NULL into that column of the table, the NULL is automatically converted into an integer which is one greater than the largest value of that column over all other rows in the table, or 1 if the table is empty. 9. What data types are supported by SQLite? SQLite uses dynamic typing. Content can be stored as INTEGER, REAL, TEXT, BLOB, or as NULL. 10. How to insert data in a table in SQLite? INSERT INTO statement is used to insert data in a table in SQLite database. There are two ways to insert data in table: Method1: Syntax: INSERT INTO TABLE_NAME VALUES (value1, value2, value3,...valueN); Method2: Syntax: INSERT INTO TABLE_NAME VALUES (value1,value2,value3,...valueN);

SQLite Interview Questions 11. How would you retrieve data from SQlite table? The SELECT command is used to retrieve data from SQLite table. If you want to retrieve all columns from the table use SELECT * otherwise use the specific column's name separated by commas. Syntax: SELECT * FROM table_name; Or SELECT column1, column2, columnN FROM table_name; 12. What is the use of UPADTE query in SQLIte? The UPDATE query is used to modify the existing records in the SQLite table. You have to use the WHERE clause to modify a specific row otherwise all rows will be updated. Syntax: UPDATE table_name SET column1 = value1, column2 = value2...., columnN = valueN WHERE ; 13. How can you delete the existing records from a table in SQLite? In SQLite, DELETE command is used to delete the existing records from a table. You should use the WHERE clause to choose the specific row otherwise all rows will be deleted. Syntax: DELETE FROM table_name WHERE ; 14. What is the use of WHERE clause in CRUD statements? WHERE clause is used to refer a specific row where the CRUD operation is executed. Without using WHERE clause all the rows will be affected. 15. What is the usage of AND & OR operators with WHERE clause? AND & OR operators are used with WHERE clause to combine two or more than two conditions together. Syntax: SELECT column1, column2, columnN FROM table_name WHERE AND ...OR ; 16. What is the usage of LIKE operator with WHERE clause? The LIKE operator is used to match text values against a pattern using wildcards. It uses two wildcards % and _ with string for matching with input. Syntax: SELECT FROM table_name WHERE column LIKE 'XXXX%' SELECT FROM table_name WHERE column LIKE 'XXXX_' 17. What is the use of LIMIT clause with SELECT query? LIMIT clause is used with SELECT statement when we want a limited number of fetched records. Syntax: SELECT column1, column2, columnN FROM table_name LIMIT 18. Why is ORDER BY clause used with SELECT statement? The ORDER BY clause is used to sort the fetched data in a specific order either ascending or descending. Syntax: SELECT column-list FROM table_name ; 19. What is the use of SQLite GROUP BY clause? SQLite GROUP BY clause is used to collect the same elements into a group. It is used with SELECT statement. Syntax: SELECT column-list FROM table_name WHERE GROUP BY column1, column2....columnN ORDER BY column1, column2....columnN 20. What is the use of DISTINCT clause in SQLite? The DISTINCT clause is always used with SELECT statement. It is used to retrieve only unique records and restrict the duplicate entries. It is used when the table has multiple duplicate records. Syntax: SELECT DISTINCT column1, column2,.....columnN FROM table_name WHERE 21. What is UNION operator? How does it work? SQLite UNION Operator is used to combine the result set of two or more tables using SELECT statement. Both the tables must have same number of fields in result table. Syntax: SELECT expression1, expression2, ... expression_n FROM tables UNION SELECT expression1, expression2, ... expression_n FROM tables ; 22. What is UNION ALL operator? What is the difference between UNION and UNION ALL operator? The UNION ALL operator is used to combine the result of two or more tables using SELECT statement. The unique difference between UNION and UNION ALL operator is that UNION operator ignores the duplicate entries while combining the results while UNION ALL doesn't ignore duplicate values. Syntax: SELECT expression1, expression2, ... expression_n FROM tables UNION ALL SELECT expression1, expression2, ... expression_n FROM tables ; 23. What is SQLite JOIN? How many types of JOINS are supported in SQLite? SQLite JOIN clause is used to combine two or more tables in a database. It combines the table by using the common values of the both table. There are mainly 3 types of JOINS supported in SQlite: SQLite INNER JOIN SQLite OUTER JOIN SQLite CROSS JOIN 24. What is SQLite INNER JOIN? SQLite INNER JOIN is simplest and most common join. It combines all rows from both tables where the condition is satisfied. Syntax: SELECT ... FROM table1 JOIN table2 ON conditional_expression ... 25. What is SQLite OUTER JOIN? There are 3 types of OUTER JOINS: Left outer join Right outer join Full outer join But SQLite only supports left outer join. The SQLite left outer join returns all rows from left table and only those rows from the right table where the join condition is satisfied. Syntax: SELECT ... FROM table1 LEFT OUTER JOIN table2 ON conditional_expression 26. Explain SQLite CROSS JOIN. The SQLite Cross join is used to match every rows of the first table with every rows of the second table. If the first table contains x columns and second table contains y columns then the resultant Cross join table will contain the x*y columns. Syntax: SELECT ... FROM table1 CROSS JOIN table2 27. What is SQLite date and time () function? SQLite date and time () functions are used to retrieve current date and time and also do calculations on the dates and time. There are mainly six types of date and time () function in SQLite: SQLite date() Function SQLite datetime() Function SQLite julianday() Function SQLite now() Function SQLite strftime() Function SQLite time() Function 28. What is the use of date() function in SQLite? The SQLite date() function is used to fetch the date and show it in 'YYYY-MM-DD' format. Syntax: date(timestring, ) 29. What is the use of datetime() function in SQLite? The SQLite datetime() function is used to retrieve current date and time in 'YYYY-MM-DD HH:MM:SS' format. Syntax: datetime(timestring, ) 30. What is SQLite julianday() function? A Julian Day is the number of days since Nov 24, 4714 BC 12:00pm Greenwich time in the Gregorian calendar. So, the julianday() function is used to return number of days since Nov 24, 4714 BC 12:00pm. Syntax: julianday(timestring ) 31. What is the use of SQLite now() function? SQLite now is not a function. Instead of this, it is a timestring parameter which is used to fetch current date and time. Syntax: date('now') or time('now') 32. What is the usage of SQLite strftime() function? SQLite strftime() function is used to fetch date and time and also perform time and date calculation. Syntax: strftime(format, timestring ) 33. What is the use of SQLite time() function? SQLite time() function is used to fetch current time in 'HH-MM-SS' format. Syntax: time(timestring, ) 34. What do you understand by SQLite aggregate functions? SQLite aggregate functions are the type of functions where values of multiple rows are grouped together as input on certain criteria and form a single value as output. There are many types of aggregate functions in SQLite. 35. What is SQLite MIN aggregate function? SQLite MIN aggregate function is used to retrieve the minimum value of the expression. Syntax: SELECT MIN(aggregate_expression) FROM tables ; 36. What is SQLite MAX aggregate function? SQLite MAX aggregate function is used to fetch the maximum value of an expression. Syntax: SELECT MAX(aggregate_expression) FROM tables ; 37. What is SQLite AVG aggregate function? The SQLite AVG function returns the average value of the expression. Syntax: SELECT AVG(aggregate_expression) FROM tables ; 38. What is SQLite COUNT aggregate function? The SQLite COUNT function is used to retrieve total count of an expression. Syntax: SELECT COUNT(aggregate_expression) FROM tables ; 39. What is SQLite SUM aggregate function? The SQLite SUM aggregate function is used to get the total summed value of an expression. Syntax: SELECT SUM(aggregate_expression) FROM tables ; 40. What is the difference between SQL and SQLite? The main differences between SQL and SQLite are: SQL is Structured Query Language while SQlite is a relational database management system mostly used in android mobile devices to store data. SQL support stored procedures while SQLite does not support stored procedures. SQL is server based while SQLite is file based. 41. What is SQLite Transactions? Transaction specifies a unit of work that is performed against a database. The transaction?s properties are determined by ACID: Atomicity: Atomicity is a property which specifies that all work units are successfully completed. Consistency: It is used to ensure that the database changes states upon a successfully committed transaction. Isolation: It facilitates you to operate transaction independently of and transparent to each other. Durability: It ensures that the result or effect of a committed transaction persists in case of a system failure. 42. In which areas, SQLite is preferred most? SQLite is preferred to work with: Embedded devices. Application file format. Data Analysis. Websites. File archives. Cache for enterprise data. Server side database. Internal or temporary databases. Replacement for ad hoc disk files. Experimental SQL language extensions. 43. What is the use of .dump command in SQLite? The .dump command is used to make a SQLite database dump. Once you use the dump command all your data will be dumped forever and cannot be retrieved. SQLite Questions and Answers Pdf Download Read the full article

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MySQL HAVING Clause

MySQL HAVING Clause

MySQL HAVING Clause is used with GROUP BY clause. It always returns the rows where condition is TRUE.

Syntax:

SELECT expression1, expression2, … expression_n,

aggregate_function (expression)

FROM tables

[WHERE conditions]

GROUP BY expression1, expression2, … expression_n

HAVING condition;

Parameters

aggregate_function:It specifies any one of the aggregate function such…