The less than or equal to operator is denoted by <=. This operator is used to compare two values and returns true if the left operand is less than or equal to the right operand; otherwise, it returns false. Here’s the general syntax of using the less than or equal to operator in PostgreSQL: value1…

The greater than or equal to operator is denoted by >=. This operator is used to compare two values and returns true if the left operand is greater than or equal to the right operand; otherwise, it returns false. Here’s the general syntax of using the greater than or equal to operator in PostgreSQL: value1…

The IS NULL operator is used to check if a value is NULL. It’s used in SQL queries to filter rows where a specific column has a NULL value. The syntax for using the IS NULL operator is as follows: SELECT columns FROM table_name WHERE column_name IS NULL; Here’s an example of using the IS…

In PostgreSQL, the not equal to operator (<> or !=) is a comparison operator used to check if two values are not equal. It is used to filter rows where a specified condition is not met. The syntax for using the not equal to operator is as follows: SELECT columns FROM table_name WHERE column_name <>…

The equal operator (=) is a comparison operator used to check if two values are equal. It’s widely used in various contexts, including WHERE clauses to filter rows based on equality conditions and in joins to combine rows with matching values. The syntax for using the equals operator is as follows: SELECT columns FROM table_name…

The less-than operator (<) is a comparison operator used to check if one value is less than another value. It’s commonly used in WHERE clauses to filter rows based on a specific condition involving numerical or string values. The syntax for using the less-than operator is as follows: SELECT columns FROM table_name WHERE column_name <…

The greater-than operator (>) is a comparison operator in postgresql used to check if one value is greater than another value. It’s often used in WHERE clauses to filter rows based on a specific condition involving numerical or string values. The syntax for using the greater-than operator is as follows: SELECT columns FROM table_name WHERE…