QUESTION 9 You must use the GROUP BY clause in a query if you are using a group function. a. True b. False

QUESTION 10 A foreign key value must exist in the table where it is a primary key. a. True b. False

What is the difference between deleting all records from a table and truncating the table? a. Truncating does not save roll back information while delete does b. Delete does not save roll back information while truncate does c. Deleting is faster d. Only a DBA can truncate, anyone can delete