The ____ constraint requires that a specific condition be met before a record can be added to a table.
A) UNIQUE
B) REFERENCE
C) CONDITION
D) CHECK

Question

The ____ constraint requires that a specific condition be met before a record can be added to a table.​
A) ​UNIQUE
B) ​REFERENCE
C) ​CONDITION
D) ​CHECK

Quizplus · Accepted Answer

The CHECK constraint requires that a specific condition be met before a record can be added to a table. The UNIQUE constraint ensures that a value in a specific column, or a combination of values in multiple columns, is unique across all the rows in a table. The REFERENCE constraint ensures that a value in a column matches a value in another column in a different table. The CONDITION constraint is not a valid constraint in SQL.

The ____ Constraint Requires That a Specific Condition Be Met