What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
A)ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade 0);
B)ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade 0);
C)ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade 0);
D)None of the above is correct.

Question

What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
A)ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0);
B)ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0);
C)ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade> 0);
D)None of the above is correct.

Quizplus · Accepted Answer

The correct SQL command to add a constraint named GradeCheck that ensures the values of the Grade column must be greater than 0 is: ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0). This syntax correctly uses ADD CONSTRAINT followed by the constraint name and the CHECK keyword to define the condition.

What SQL Command Will Allow You to Change the Table