Null Conditions

A NULL condition tests for nulls.

null_condition::=

Text description of null_condition

Table 5-9 lists the null conditions.

Table 5-9 Null Conditions

Condition	Operation	Example
IS [NOT] NULL	Tests for nulls. This is the only condition that you should use to test for nulls. See Also: "Nulls".	SELECT last_name FROM employees WHERE commission_pct IS NULL;