Question

what are the differences between primery key and composite key​

Answer 1

Answer:

Primary key is that column of the table whose every row data is uniquely identified. ... Primary key value can never be null nor can be modified or updated. Composite Key is a form of the candidate key where a set of columns will uniquely identify every row in the table

Answer 2

ᎩᎧᏬᏒ ᏗᏁᏕᏇᏋᏒ..

• Primary key is that column of the table whose every row data is uniquely identified. ... Primary key value can never be null nor can be modified or updated.

• Composite Key is a form of the candidate key where a set of columns will uniquely identify every row in the table.

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