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Question

Purpose of foreign key constraint in SQL Server is __________

a.

FOREIGN KEY constraints identify and enforce the relationships between tables

b.

A foreign key in one table points to a candidate key in another table

c.

You cannot insert a row with a foreign key value, except NULL, if there is no candidate key with that value

d.

None of the mentioned

Answer: (a).FOREIGN KEY constraints identify and enforce the relationships between tables

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Q. Purpose of foreign key constraint in SQL Server is __________

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