Топ-100
 

IS NOT NULL

RDBMS Type: MySQL
Topic

Syntax:
IS NOT NULL

Tests whether a value is not NULL.

URL: https://dev.mysql.com/doc/refman/8.0/en/comparison-operators.html

Example

mysql> SELECT 1 IS NOT NULL, 0 IS NOT NULL, NULL IS NOT NULL;
-> 1, 1, 0