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I try this query in PhpMyAdmin:
INSERT INTO t1 ( col1, col2 )
SELECT DISTINCT col1, col2
FROM t2
WHERE (SELECT col3 FROM t1) = ANY (SELECT col3 FROM t2)
but given me that error: #1242 – Subquery returns more than 1 row !
anyone can fix it?
The
WHEREcondition is not correct, because it tries to compare a single value to a set; this is precisely what the error is trying to tell you.Try this instead: