SQL UNION Operator
SQL UNION Operator The SQL UNION operator is used to combine the result sets of two or more SELECT statements into a single result set. The SELECT statements must have the same number of columns, with compatible data types in corresponding columns. The syntax for the UNION operator is as follows: SELECT column1, column2, … […]
String Operation
String Operation String Operation: Python provides many built-in string operations that you can use to manipulate strings. Here are some common string operations in Python: Concatenation: You can concatenate two or more strings using the “+” operator. Example: str1 = “Hello” str2 = “world” result = str1 + ” ” + str2 print(result) Output: Hello […]
Variables
Variables In C programming language, a variable is a named location in memory that stores a value that can be used and manipulated by the program. Variables in C have a type that determines the size and format of the data they can hold. To declare a variable in C, you need to specify its […]
SQL Joins
SQL Joins In SQL, a JOIN operation is used to combine rows from two or more tables based on a related column between them. Joining tables is one of the most powerful features of SQL, as it allows data from multiple tables to be combined into a single result set. Here are some types of […]
STRINGS
STRINGS STRINGS: In Python, a string is a sequence of characters enclosed within single, double, or triple quotes. Strings are a fundamental data type in Python, and they are used extensively for storing and manipulating textual data. Here are some basic operations that can be performed on strings in Python: Concatenation: To join two or […]
TOKEN IN C
Token In C A token can be a keyword, an identifier, a constant, a string literal, an operator, or a special symbol. The C compiler recognizes and interprets the sequence of tokens in a program. Here are the types of tokens in C: Keywords: Keywords are reserved words in the C language that have a […]
Numbers
Numbers Numbers: In Python, there are three main types of numerical data types: Integer (int): This represents positive or negative whole numbers without any fractional part. For example: 5, -10, 100. Floating-point (float): This represents real numbers with a decimal point or exponential notation. For example: 14, 2.0e-2, 1.2E5. Complex (complex): This represents numbers with […]
SQL Aliases
SQL Aliases In SQL, an alias is a temporary name assigned to a table or column in a query result set. Aliases can be useful when working with complex queries that involve multiple tables or when the column names in a table are not very descriptive. Here are some examples of using aliases in SQL: […]
Loop Control Statements
Loop Control Statements Loop Control Statements: In Python, the loop control statements are break, continue, and pass. break statement: The break statement is used to exit a loop prematurely. When executed within a loop, it immediately terminates the loop and control is transferred to the statement that follows the loop. The break statement can be […]
Basic Syntax In C
Basic Syntax In C 1.Comments: Comments are used to add notes or explanations to your code. They start with /* and end with */ for multiline comments, or with // for single-line comments. 2.Data types: C supports several data types, including int for integers, float for floating-point numbers, double for double-precision floating-point numbers, char for […]