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  1. #1
    Join Date
    Dec 2007

    Unanswered: Integrity Constraints


    I am working on an assignment for a class and I am quite confused. I need to build a relational schema to solve a number of queries, but I am not sure on a couple of items

    I have a number of tables that need to be created which I am comfortable doing except for the constraints.



    Employee.ssn = Dependent.essn
    Employee.ssn = Employee.superssn

    Is this possible??? How do I create the constraints???

    Thanks in advance

  2. #2
    Join Date
    Aug 2003
    Where the Surf Meets the Turf @Del Mar, CA
    Provided Answers: 1

    You need a couple of foreign keys constraints
    You can lead some folks to knowledge, but you can not make them think.
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