The Oracle IS NOT NULL condition is used to check for IS NOT NULL value. If expression is a IS NOT NULL value, the condition evaluates to TRUE otherwise FALSE.
To check for the IS NOT NULL value in the field, use the following syntax:
Parameters:
tablename: The table name from which you want to perform IS NOT NULL operator.
expression: To test specifies value if it is NOT NULL value.
Note:
In the above example, we are performing IS NOT NULL operator to check for the NOT NULL value in the "address" field.