NOT id IN (1, 2, 3) vs NOT (id IN (1, 2, 3))
September 5, 2008
Problem:
You’re probably wondering why the following query doesn’t work on some mySQL databases
SELECT * FROM table1 WHERE NOT id IN (1, 2, 3)
works on mySQL v5.0.51a
doesn’t work on mySQL v4.1.21
Solution:
The reason is that the query would confuse the older version what to evaluate by NOT.
This query generally works.
SELECT * FROM table1 WHERE NOT (id IN (1, 2, 3))
works on mySQL v5.0.51a
works on mySQL v4.1.21
This is basically just specifying what should value should be evaluated by NOT.
Filed under: MySQL |
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