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Foreign key??

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Guest_imported

Guest_imported

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Jan 1, 1970
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I have two tables 'student' and 'modules', where in the first one the primary key is the 'username' and in the secong it is the 'module_name'. I am trying to create another table, 'student_module', with 'username', 'module_name' and 'exam_date'. I want the first two to be the primary key but in addition I want them to be foreign keys with reference to the previous tables. I have tried everything but it seems impossible!

Does anyone have any suggestions? :-(
Thank you!!
 
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