Oracle Performance Tuning, 2nd Edition by Mark Gurry and Peter Corrigan Here are the changes from the 12/97 reprint: (174): code 1, line 1: changed "dpt_no" to "dept_no" {180}: "Note" changed: both "WHEN"s changed to "WHERE" {183}: code 2, line 4 now reads: UNION ALL The following scripts were replaced: [295]: waiters.sql [431]: tspuse.sql [588]: exp_lrge.sh [609-610]: chk_nxt.sql For the new scripts, return to the book's web page and click on the "Book Examples via ftp" link. (588) in the next-to-last line of para. 1, changed "megabytes" to "gigabytes"