Question
EX 5.4) Show how to enforce the constraint an instructor cannot teach in two different classrooms in a semester in the same time slot. using
EX 5.4) Show how to enforce the constraint an instructor cannot teach in two different classrooms in a semester in the same time slot. using a trigger (remember that the constraint can be violated by changes to the teaches relation as well as to the section relation).
Please provide the answer in terms of the syntax from Database Systems Concepts, 6th Edition, Chapter 5.
Thank you.
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Database And Expert Systems Applications Dexa 2021 Workshops Biokdd Iwcfs Mlkgraphs Al Cares Protime Alsys 2021 Virtual Event September 27 30 2021 Proceedings
Authors: Gabriele Kotsis ,A Min Tjoa ,Ismail Khalil ,Bernhard Moser ,Atif Mashkoor ,Johannes Sametinger ,Anna Fensel ,Jorge Martinez-Gil ,Lukas Fischer
1st Edition
3030871002, 978-3030871000
