Steve Bryant wrote:
> Nope. That returns only rows from lessons where either no matching row
> exists in the students table at all or where a matching row exists for
> that student. In other words, it eliminates any lessons for which there
> is a match in the students table, but not for the given student.
Then...
LEFT JOIN lessions ON lessions.lessionId = students.lessonID
WHERE students.studentId = #studentId#
OR students.studentId IS NULL
Is that what you mean?
K.
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