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Discussion :: Database System 2 - CS

  1. When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

  2. A.

     transitive dependency.

    B.

     insertion anomaly.

    C.

     referential integrity constraint.

    D.

     normal form.

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    Answer : Option C

    Explanation :

    referential integrity constraint is defined as part of an association between two entity types. The definition for a referential integrity constraint specifies the following information: The principal end of the constraint. (An entity type whose entity key is referenced by the dependent end.)


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