Comparison Operator - (MariaDB Operators)

In MariaDB, comparison operators are used to compare two values and return a boolean value (TRUE or FALSE) depending on the result of the comparison. MariaDB provides a range of comparison operators that can be used to compare different types of data.

Syntax

Here are the syntaxes for some commonly used comparison operators in MariaDB:

• = (equal to)
• <> or != (not equal to)
• < (less than)
• > (greater than)
• <= (less than or equal to)
• >= (greater than or equal to)

Example

Here is an example of using the comparison operator = in a SELECT statement:

SELECT * FROM employees WHERE department = 'Sales';

In this example, we are selecting all columns from a table called employees where the value in the department column is equal to 'Sales'.

Output

Executing the SELECT statement will return a result set of all rows in the employees table where the department column is equal to 'Sales'.

Explanation

In the above SELECT statement example, we are using the equal to (=) comparison operator to compare the values in the department column to the string 'Sales'. The WHERE clause filters the results of the SELECT statement by only selecting rows where department is equal to 'Sales'.

Use

Comparison operators are an essential part of querying data from a database. They allow us to filter and sort data based on specific criteria. Comparison operators can be used in a range of SQL statements, including SELECT, UPDATE, DELETE, and WHERE clauses.

Important Points

• Comparison operators are used to compare two values and return a boolean value (TRUE or FALSE) depending on the result of the comparison.
• MariaDB provides a range of comparison operators, including equal to, not equal to, less than, greater than, less than or equal to, and greater than or equal to.
• Comparison operators can be used in a range of SQL statements, including SELECT, UPDATE, DELETE, and WHERE clauses.

Summary

In summary, comparison operators are an essential part of querying data from a database. They allow us to filter and sort data based on specific criteria. In MariaDB, a range of comparison operators are available, including equal to, not equal to, less than, greater than, less than or equal to, and greater than or equal to. These operators can be used in SELECT, UPDATE, DELETE and WHERE clauses to manipulate, filter, and sort data.