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Record Checking

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I have a database that tracks CEUs for teachers and have a question regarding how to script something.

I have a Course table and a Student table. To bring them together I created a registration table for the purposes of placing students in their registered courses. I want to be able to check that a student is not registered for the same course more than once at the time the student is registered.

For example, I have already been registered for Course X but a colleague of mine doesn't know that and tries to enroll me in the same course. What check can be run so that my colleague is notified of the duplication?

Thanks!!

Validate a calc field to be unique:

IDStudent & "|" & IDCourse & "|" & IDTerm

You need the Term (or semester or...) in there to be sure to allow someone to retake a course.

Edited by Guest

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