11.
The EXISTS keyword will be true if:

12.
Changing cardinalities in a database is:

13.
The NOT EXISTS keyword will be true if:

16.
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?

17.
Which is not true of a correlated subquery?

20.
Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.