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Question

What is a Foreign Key in a relational table used for?

a.

Establishing relationships with multiple tables

b.

Identifying primary key values

c.

Linking tables in the same database

d.

Establishing a direct relationship with another table

Posted under Data Warehousing and OLAP

Answer: (d).Establishing a direct relationship with another table Explanation:A Foreign Key in a relational table is used for establishing a direct relationship with another table, known as the parent table.

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