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Table / Forms Relationship Problem

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vistor

Technical User
Dec 22, 2000
164
US
Hi,

I have a staff table - staff_id, staff_name, etc.

instructor table - instructor_id, instructor_name, etc.

course table - course_id, title, etc.

Staff may take courses - I have a staff_course table, fields staff_id and course_id.


Staff Form has the main info from staff table with a datashet subform with the courses the staff take. Basic set-up.

Instructors may teach course - I have a instructor_course table, fields instructor_id and course_id.

Instructor Form has the main info from instructor table with a datashet subform with the courses the instructor teaches. Basic set-up.

My problem is that Instructors may be staff members as well as from an outside organization. Staff table and Instructor table by have different fields.

How do I create the staff / instructor table relationship and have a Instructor form that has fields for the staff and separate fields for an outside instructor? I need to have a lookup combo box for the staff on the instructor form, for when an instructor is a staff member.

I've tried having the staff_id on the instructor table. But this creates problems when the instructor is not a staff member. When the user creates a new instructor record that is not a staff member, a warning comes up saying that a matching staff_id can't be found in the staff table.

Thanks -cdwd



 
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