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Sorry for the ridiculous title!

Is it possible to run a MySQL INSERT SELECT query where the 'SELECT' portion includes a COUNT() function (to benefit from a HAVING clause) -- this creates an unmatching column count on the INSERT portion.

For example:

INSERT INTO my_log (user_id, date_finished) 
SELECT COUNT(id) AS count, user_id, '2011-05-31 00:00:00'
FROM assignments WHERE assignment_type = 10 
GROUP BY user_id
HAVING count >=10

I want to insert into the TABLE my_log a date for users who've completed 10 assignments of the type 10. In reality I'm expanding on this slightly so it's important I use the COUNT and HAVING to find only users who have completed 10 or more assignments. But my problem remains that I'm trying to insert 3 columns into a declared 2 columns because of the COUNT() function, so I'm looking for a way to benefit from the COUNT but not return it in my data set / considered in the insertion.

Thanks for any help :)

kimion09
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1 Answers1

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Try with:

INSERT INTO my_log ( user_id, date_finished) 
SELECT user_id, '2011-05-31 00:00:00'
FROM assignments WHERE assignment_type = 10 
GROUP BY user_id
HAVING ( COUNT(id) ) >=10
Tudor Constantin
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