* Scott Plumlee > I've got two separate tables, each with id fields that are > auto-increment. The created fields below are timestamps. The tables > are Innodb tables using transactions to process the statements. This > will be an online registration process for our business, using PHP and > MySQL. PHP is using session ids for tracking state. > > table1 > -------- > id > first_name > last_name > created > etc..... > > table2 > --------- > id > table1_id > created > etc.... > > > I need to insert a row into table1, using a null value for the id so it > generate an id automatically. Then I need to insert a row into table2, > including the id from table 1 (table1.id needs to be inserted into > table2.table1_id). > > Any best practices to doing this?
Use the LAST_INSERT_ID() function: INSERT INTO table1 SET first_name='roger',last_name='baklund'; INSERT INTO table2 SET table1_id=LAST_INSERT_ID(),etc='whatnot'; This function is connection specific, you will get the correct id even if you have multiple simultaneous users. <URL: http://www.mysql.com/doc/en/ANSI_diff_Transactions.html#IDX141 > <URL: http://www.mysql.com/doc/en/Information_functions.html#IDX1428 > -- Roger -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]