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What is a primary key

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What is a primary key

    • Posted by Juhi Sharma 4 years, 8 months ago

    CBSE > Class 10 > Information Technology (402)
    • 1 answers

    Yogita Ingle 4 years, 8 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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