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NULLIF
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The NULLIF() function produces a NULL value if both its arguments are equal, otherwise it produces the first argument.
SELECT nullif(1, 1), nullif(1, 2);
create.select(nullif(1, 1), nullif(1, 2)).fetch();
The result being
+--------+--------+ | nullif | nullif | +--------+--------+ | | 1 | +--------+--------+
Dialect support
This example using jOOQ:
nullif(1, 2)
Translates to the following dialect specific expressions:
Access
iif(1 = 2, NULL, 1)
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nullif(1, 2)
Generated with jOOQ 3.21. Support in older jOOQ versions may differ. Translate your own SQL on our website
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