Computer Science, asked by bhatjohn9741, 1 year ago

What is primary key ? State it's use in a table

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Answered by sandeepkm3666
11

Answer:

A primary key is a special relational database table column (or combination of columns) designated to uniquely identify all table records. A primary key's main features are: It must contain a unique value for each row of data. It cannot contain null values.

Explanation:

Answered by deepikakumari7781
0

This is useful for you

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