Question

A CHECK constraint requires that a data value meet a certain condition before the record is added to the database table.​

A) True
B) False

Answer 1

A CHECK constraint is a type of constraint that ensures a data value meets a certain condition before allowing the record to be added to the database table is true.

Step-by-step explanation:

A CHECK constraint is a type of constraint in a database table that ensures a data value meets a certain condition before allowing the record to be added to the table. This condition can be any logical expression that evaluates to true or false, such as a comparison between values or a regular expression pattern.

For example, if a table has a CHECK constraint that requires the age column to be greater than or equal to 18, any records attempting to be added with an age less than 18 would violate the constraint and be rejected.

So, the statement that a CHECK constraint requires that a data value meet a certain condition before the record is added to the database table is true.