Martijn Tonies schrieb: >>>>> [...] why in procedure TRUNCATE table >>>>> demo do not reset auto_increment? >>>> is clearly written in the documentation, just read ... >>>> >>>> in short: >>>> >>>> auto_increment is used for primary key, primary keys could be >>>> referenced >>>> from another table, setting auto_increment back to 0 could lead to >>>> using a >>>> primary key formerly used by another datarow and still referenced by >>>> another >>>> table - could lead to data inconsistency. >>> lol, but TRUNCATE empties the table... What good are your references? >> >> it is better to have references leading to 'nothing' than to a wrong >> datarow >> ... i think this is very easy to understand - better save than sorry! > > Why is a row with an invalid reference better? It's invalid data and you > just corrupted your database.
please define 'invalid' - i think invalid is it in booth cases, so an empty invalid is better than a wrong invalid, or not? better have an unpayed bill leading to no costumer than to a wrong customer -- Sebastian -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
