NULLIF
Warning
SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.
On this page
Returns NULL if the arguments are equal, otherwise the first argument.
Syntax
NULLIF (val1, val2)Arguments
-
Any SQL objects
Return Type
The return value has the same type as the first argument, or NULL.
Examples
SELECT NULLIF(1,2);
+-------------+
| NULLIF(1,2) |
+-------------+
| 1 |
+-------------+SELECT NULLIF(2,2);
+-------------+
| NULLIF(2,2) |
+-------------+
| NULL |
+-------------+SELECT NULLIF(NULL, NULL);
+--------------------+
| NULLIF(NULL, NULL) |
+--------------------+
| NULL |
+--------------------+SELECT NULL = NULL;
+-------------+
| NULL = NULL |
+-------------+
| NULL |
+-------------+Last modified: February 24, 2023