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What is a primary key

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What is a primary key

Posted by Juhi Sharma 3 years, 9 months ago

CBSE > Class 10 > Information Technology (402)

1 answers

Yogita Ingle 3 years, 9 months ago

A field which uniquely identifies each record in a table is known as primary key. e.g. empld is the primary key of the Employee table. A primary key uniquely identifies the record in the table.

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CBSE > Class 10 > Information Technology (402)

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CBSE > Class 10 > Information Technology (402)