Oracle® Database SQL Reference 10g Release 2 (10.2) Part Number B14200-01 |
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A NULL
condition tests for nulls. This is the only condition that you should use to test for nulls.
null_conditions::=
Table 7-10 lists the null conditions.
Type of Condition | Operation | Example |
---|---|---|
IS [NOT] NULL |
Tests for nulls.
See Also: "Nulls" |
SELECT last_name FROM employees WHERE commission_pct IS NULL; |