Question

Atable can have only one primary key.​

Answer 1

Answer:

primary key is a field in a table which uniquely identifies each row/record in a database table. Primary keys must contain unique values. A primary key column cannot have NULL values. A table can have only one primary key, which may consist of single or multiple fields.

Answer 2

Required Answer:

☑A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields).