MySQL IS NULL
To filter the results, the MySQL IS NULL condition is used with SELECT, INSERT, UPDATE, and DELETE statements to check for a NULL value.
Syntax:
WHERE expression IS NULL;
Parameters:
expression: It is used to specify a column or a field to be tested.
Example: Students table:
ID | NAME | AGE |
1 | Joy | 5 |
2 | Smiley | 13 |
3 | Happy | 11 |
4 | Tom | 15 |
5 | Jerry | 10 |
6 | Bruno | NULL |
7 | David | NULL |
Query:
SELECT name FROM students WHERE age IS NULL;
Output:
NAME Bruno David 2 rows in set <0.00 sec>