SQLite: NOT Condition

This SQLite post explains how to use the SQLite NOT condition with syntax and examples.

Description

The SQLite NOT Condition (also called the NOT Operator) is used to negate a condition in a SELECT, INSERT, UPDATE, or DELETE statement.

Syntax

The syntax for the NOT Condition in SQLite is:

NOT condition

Parameters or Arguments

condition

The condition to negate.

Note

• The SQLite NOT condition requires that the opposite of the condition be must be met for the record to be included in the result set.

Example - Combine With IN condition

The SQLite NOT condition can be combined with the IN Condition.

For example:

SELECT *
FROM employees
WHERE department NOT IN ('Accounting', 'Finance', 'HR');

This SQLite NOT example would return all rows from the employees table where the department is not 'Accounting', 'Finance', or 'HR'. Sometimes, it is more efficient to list the values that you do not want, as opposed to the values that you do want.

Example - Combine With IS NULL condition

The SQLite NOT condition can also be combined with the IS NULL Condition.

For example,

SELECT *
FROM employees
WHERE department IS NOT NULL;

This SQLite NOT example would return all records from the employees table where the department does not contain a NULL value.

Example - Combine With LIKE condition

The SQLite NOT condition can also be combined with the LIKE Condition.

For example:

SELECT last_name, first_name
FROM employees
WHERE last_name NOT LIKE 'A%';

By placing the SQLite NOT Operator in front of the LIKE condition, you are able to retrieve all employees whose last_name does not start with 'A'.

Example - Combine With BETWEEN condition

The SQLite NOT condition can also be combined with the BETWEEN Condition. Here is an example of how you would combine the NOT Operator with the BETWEEN Condition.

For example:

SELECT *
FROM employees
WHERE employee_id NOT BETWEEN 5 AND 10;

This SQLite NOT example would return all rows from the employees table where the employee_id is NOT between 5 and 10, inclusive. It would be equivalent to the following SELECT statement:

SELECT *
FROM employees
WHERE employee_id  5
OR employee_id > 10;

Example - Combine With EXISTS condition

The SQLite NOT condition can also be combined with the EXISTS Condition.

For example,

SELECT *
FROM employees
WHERE NOT EXISTS (SELECT * 
                  FROM positions
                  WHERE positions.position_id = employees.position_id);

This SQLite NOT example would return all records from the employees table where there are no records in the positions table for the given position_id.