What is the function of the unique constraint?
Posted: Thu Jul 14, 2022 8:53 am
a) It ensures that no two values under an attribute are identical
b) It ensures that all the attributes are perfectly unique in their data type
c) It ensures that all the relations in the database have a unique set of attributes
d) It does not have any function in SQL
b) It ensures that all the attributes are perfectly unique in their data type
c) It ensures that all the relations in the database have a unique set of attributes
d) It does not have any function in SQL