📊 Microsoft Access
Q. Referential integrity means
  • (A) Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table
  • (B) Do not enter a value in the primary key field of child table if that value does not exist in the primary key of the parent table
  • (C) Do not enter a value in the foreign key field of a parent table if that value does not exist in the primary key of the child table
  • (D) All of above
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✅ Correct Answer: (A) Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table

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