CIW
1D0-441 · Question #46
1D0-441 Question #46: Real Exam Question with Answer & Explanation
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Question
Consider the following relation definition: STUDENT( Student_Number: integer NOT NULL Name: variable length character string length 20 NOT NULL) Primary Key Student_Number HOUSING( Housing_ID: integer NOT NULL Student_Number: integer NOT NULL Building: variable length character string length 25 NOT NULL) Primary Key Housing_ID Foreign Key Student_Number References STUDENT(Student_Number) ON DELETE NO CHECK ON UPDATE Which integrity constraint is violated in this relation definition?
Options
- AEntity integrity
- BDomain constraint
- CReferential integrity
- DEnterprise constraint
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