How can I set up mysql so as if the id of an entry from table 1 is inserted in table 2 it will not allow me to delete the information in table 1?
EX: table1 holds the description of the products (table1_id is the primary key of the table); table2 holds the information about all the purchased products and the customers. How can I set up table1 to lock all the entries that are used in table2 for reference? I appreciate any answer.... Thank you, Ciprian --------------------------------------------------------------------- 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