Which one is the guideline of Referential integrity in a relationship ? - Study24x7
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Which one is the guideline of Referential integrity in a relationship ?

A

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

B

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

C

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

D

Do not enter a value in the foreign key field of child table if that value does not exist in the foreign key of the parent table

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