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What is primary key.

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What is primary key.
  • 2 answers

Khushi Jakhar 6 years, 7 months ago

It is the key which uniquely identify the record in a table and it cannot be left empty .

Avinash Saigal 6 years, 7 months ago

Primary key is the column of the table which is used to uniquely identify the records in the table.(1) It is unique for each record.(2) It cannot be left empty. Thank you??
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