hi, i have 2 questions that i badly need answered. i use phpmyadmin, but any answers containing SQL syntax should work in this app... 1) this should be simple but i don't know it. i use the following mysql table field as the Key for my tables: "id int(10) unsigned NOT NULL auto_increment," now, when i have to clean up items in my tables, like when users have sent off a .html form multiple times and i want to delete duplicate submissions, how can i quickly & easily update all of the 'id' fields in the entire table, to reflect the numeration change? now, using phpmyadmin, if i go in and delete a few entries, the id's have gaps in them. 2) in a table i have a column called User. some people have entered things into this table multiple times. how do i create a SELECT statement to select only those rows that have multiple Users? i need something like this (but this is wrong, of course): SELECT * FROM mail_form2 WHERE 'count(User) >1' many thanks from a newbie, tom --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php