Placing the ____ constraint on a column indicates that all rows in the table must contain a value in the column.
A) CHECK
B) FOREIGN KEY
C) UNIQUE
D) NOT NULL

Question

Quizplus · Accepted Answer

The NOT NULL constraint indicates that the column cannot contain NULL values, which means that all rows in the table must contain a value in that column. Therefore, option D is the best choice. The other options (CHECK, UNIQUE, and FOREIGN KEY) do not necessarily require all rows in the table to contain a value in the column.

Placing the ____ Constraint on a Column Indicates That All