The SQL NOT condition (sometimes called the NOT Operator) is used to negate a condition in the WHERE clause of a SELECT, INSERT, UPDATE, or DELETE statement.

What is not in SQL?

NOT is a logical operator in SQL that you can put before any conditional statement to select rows for which that statement is false.

Can we use != In SQL query?

We can use both SQL Not Equal operators <> and != to do inequality test between two expressions. Both operators give the same output.