Ivan, currently InnoDB allows a NULL in the child column only if there is a NULL in the parent column.
Best regards, Heikki Tuuri Innobase Oy --- Order technical MySQL/InnoDB support at https://order.mysql.com/ See http://www.innodb.com for the online manual and latest news on InnoDB .............. Hi. I am using MySQL 3.23.44-MAX. with InnoDB I have create two tables (one of them parent, other child). All seems Ok. But when I am trying to insert new record into the table I am getting key violation. It happened when I am trying insert null value into field that have foreign key. (column could be null) I am tried to find any mention over the net, but I haven't found any mentions about this. Sincerely yours, Ivan Latysh. [EMAIL PROTECTED] http://ivan.yourmail.com --------------------------------------------------------------------- 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
