A(n)____ integrity constraint is the column or set of columns that define a unique identifying value for every row in the table.
A) primary key
B) foreign key
C) unique
D) not null

Question

Quizplus · Accepted Answer

A primary key is a type of integrity constraint that ensures a unique identifying value for every row in the table. It is a column or set of columns that uniquely identifies each row in the table and must be unique and not null.

A(n)____ Integrity Constraint Is the Column or Set of Columns