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Friday, 24 May 2013

What is a composite Key?

Published May 24, 2013

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What is a composite Key?

A composite key is a primary key composed of multiple columns used to identify a record uniquely

In our database , we have two people with the same name Robert Phil but they live at different places.

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Hence we require both Full Name and Address to uniquely identify a record. This is a composite key.

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