Define primary key

Ramos Sapkota

4 years ago

What is a primary key? Mention any two uses of primary key.

1 Answer

Ramos Sapkota

4 years ago

The primary key is a special filed or group of fields in a table that has unique value for each record and does not accept the duplicate value for a field.
Any two uses of primary key are as follows:

To identify each record of a table.
To set the relationship between tables.

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