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Wrong operator. To test for NULL, use the IS NULL and IS NOT NULL operators ... You cannot use arithmetic comparison operators such as =, <, or <> to test for NULL.
Answer
#1: Initial revision
by
Peter Taylor
·
2022-02-24T15:38:18Z (over 2 years ago)
Wrong operator. [To test for NULL, use the IS NULL and IS NOT NULL operators ... You cannot use arithmetic comparison operators such as =, <, or <> to test for NULL](https://dev.mysql.com/doc/refman/8.0/en/working-with-null.html).