On Tue, May 2, 2006 7:05 am, Ross wrote: > This is my database now...I will use the item_id for the order but > what if I > want to change item_id 3 to item id 1? How can I push all the items > down one > place? How can I delete any gaps when items are deleted.
Change item_id 3 to 1. ... select id from board_papers where item_id = 3 ... $id3 = mysql_result($result); ... select id from board_papers where item_id = 1 ... $id1 = mysql_result($result); ... update board_papers set item_id = 1 where id = $id3 ... update board_papers set item_id = 3 where id = $id1 Delete an item: $item_id = 42; ... delete from board_papers where item_id = 42 ... update board_papers set item_id = item_id - 1 where item_id > 42 It's up to you to actually add all the function calls and quotes and error-checking and make it work for variables instead of constants. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
