10. In PL/SQL, how do you assign variables the same type as a column in the database? 11. How do you place the results of a SELECT command into variables in PL/SQL? 12. Can you use INSERT, UPDATE, or DELETE commands that affect more than one row in PLISQL procedures? 13. How do you use a SELECT command that retrieves more than one row in a PL/SOL procedure? 14. Which PL/SQL command activates a cursor? 15. Which PL/SQL command selects the next row in a cursor? 16. Which PL/SQL command deactivates a cursor? 17. How do you use SQL commands in Access? 19. How do you move to the next record in a recordset in Access? 20. What are triggers? What purpose do they serve