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1D0-441 · Question #31

Consider the following relation definitions: domain s_id: integer domain grd: fixed length character string length 1 STUDENT_GRADE( Student_Number: s_id Grade: grd ) Primary Key Student_Number Which…

The correct answer is A. Entity integrity. See the full explanation below for the reasoning.

Question

Consider the following relation definitions: domain s_id: integer domain grd: fixed length character string length 1 STUDENT_GRADE( Student_Number: s_id Grade: grd ) Primary Key Student_Number Which integrity constraint is violated in this relation definition?

Options

  • AEntity integrity
  • BDomain constraint
  • CReferential integrity
  • DEnterprise constraint

How the community answered

(27 responses)
  • A
    78% (21)
  • B
    4% (1)
  • C
    4% (1)
  • D
    15% (4)

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Full 1D0-441 Practice