Re: Help with query

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Ing. Tomás Liendo wrote:
Hi I need the students that didn't take an exam. The tables:

exams(id_test, title, desciption, ....)

results(id_student, id_test, date, qualification...)

I'm using a version of MySQL that doesn't support NOT IN, then I tried in this way:

SELECT * FROM exams LEFT JOIN results ON exams.id_test=results.id_test WHERE results.id_test IS NULL AND id_student=".$user

The query doesn't return anything... What Can I do???

Ahead of time, thank you very much,

Tom.


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