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Question

What is a Composite Key in a database table?

a.

A key with multiple attributes

b.

A primary key with a unique constraint

c.

A foreign key referencing another table

d.

A unique identifier for a database

Posted under Data Warehousing and OLAP

Answer: (a).A key with multiple attributes Explanation:A Composite Key for a database table is made up of more than one attribute or field.

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