On Tue, 20 Jan 2004, Marco Paci wrote: > Since the process of inserting a new record and reading its PK field > value is a two step process implemented by: > 1) insert into tablename (columnnames) values(....) > 2) select last_insert_id() > ,and since because of the architecture of my application I cannot > prevent that 2 concurrent insertions won't be done
http://www.mysql.com/doc/en/LOCK_TABLES.html What will happen is: | Write-lock on table | Insert a new record | Write-lock on table (waiting...) | | Read the value of PK field | Unlocking table(s) | Write-lock gotten | Insert new record | Read the value of PK field | Unlock table(s) | | | v Time Thread 1 Thread 2 Axis cheers, Tobias -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
