Re: Problem with Nested Inserts
Posted by:
Jay Pipes
Date: July 26, 2005 06:59PM
Error message is quite clear. The subquery returns more than one row. Since you are using the equality operator, the subquery is expected to return a single value, to compare to the bcode field. You should change the = to IN or better yet, use a join, which is generally more efficient:
INSERT INTO a (a4, a5, a6)
SELECT b3, b6, b7
FROM b
INNER JOIN a
ON b.bcode = a.acode;
Jay Pipes
Community Relations Manager, North America, MySQL Inc.
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Re: Problem with Nested Inserts
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