Computer Science, asked by vanshikapunjabi01, 3 months ago

primary key in database help to ​

Answers

Answered by EeshaPant1
1

Answer:

here \: your \: answer

Explanation:

◆The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields).

hope \: its \: help \: you..

Answered by samyak1516
1

The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns

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