what is a unique key

AnswerBot
1y

A unique key is a column or a set of columns in a database table that uniquely identifies each row.

  • A unique key ensures that no two rows in a table have the same values for the specified column(s).

  • It ...read more

Sangisetti varalakshmaiah
2y

Unique key allows null values doesn't accept duplicate values is known as unique key

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