Detailed explanation and options for the selected question.
What is the function of the FOREIGN KEY constraint in a table?
A.
To enforce referential integrity between tables
B.
To allow duplicate values in a column
C.
To ensure all values are unique
D.
To create an index on the column
Explanation:
The FOREIGN KEY constraint enforces referential integrity by linking columns between tables. It does not allow duplicates or enforce uniqueness unless specified.