NOT Operator - ( Oracle Misc )

The NOT operator in Oracle is used to negate a condition or expression. It returns the opposite Boolean value of what it is applied to.

Syntax

The syntax for the NOT operator in Oracle is:

NOT condition

Here, condition is the expression or condition that we want to negate.

Example

Here is an example of using the NOT operator in an Oracle SQL query:

SELECT * 
FROM employees
WHERE NOT job_id = 'IT_PROG';

In this example, the NOT operator is used to select all employees whose job_id is not 'IT_PROG'.

Output

The output of the query will be a list of all employees whose job_id is not 'IT_PROG'.

Explanation

The NOT operator is used in the WHERE clause of the query to negate the condition job_id = 'IT_PROG'. This means that the query will select all employees whose job_id is not 'IT_PROG'.

Use

The NOT operator is used in SQL queries to negate a condition or expression. This can be useful when we want to select a subset of data that does not meet a certain condition.

Important Points

• The NOT operator negates a condition or expression.
• It returns the opposite Boolean value of what it is applied to.
• The NOT operator is commonly used in the WHERE clause of SQL queries to select a subset of data that does not meet a certain condition.

Summary

In summary, the NOT operator is used in Oracle SQL queries to negate a condition or expression. It returns the opposite Boolean value of what it is applied to, and is commonly used in the WHERE clause to select a subset of data that does not meet a certain condition.