>I am currently using MySQL to warehouse real-time data, and I have a couple
>of questions regarding AUTO_INCREMENT columns.
>MySQL version: 3.23.33
>Table Types: MYISAM
>1) The data is only stored for 24hrs. If I do continuous deletes from the
>tables, will the AUTO_INCREMENT columns reuse the deleted numbers?
MyISAM tables: no
ISAM tables: yes, if you delete records at the top of the series
>2) I was wondering if the AUTO_INCREMENT columns wrapped back to 0 once they
>run out of numbers on the top end?
An error occurs.
>3) If neither of these cases are true, is there a way to simulate number 2?
No. Use a BIGINT UNSIGNED to get the largest possible range of numbers.
>Universal Weather and Aviation, Inc.
>713-944-1440 ext. 3623
Paul DuBois, paul@stripped