Discussion :: Database System 2 - CS
- 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):
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A.
transitive dependency. |
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B.
insertion anomaly. |
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C.
referential integrity constraint. |
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D.
normal form. |
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Answer : Option C
Explanation :
A 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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