Oracle PL/SQL Programming, 2nd Edition By Steven Feuerstein with Bill Pribyl Here are the changes from the October 1997 reprint: {144}: 2nd code example, line 7: changed "OR" to "AND" (990): added the following to the end of the next-to-last para.: Whenever possible, our books use RepKover (tm), a durable and flexible lay-flat binding. If the page count exceeds RepKover's limit, perfect binding is used.