Re: Re: phpMyAdmin--resetting auto increments to 0

tedd wrote:

At 1:42 PM -0600 4/16/06, Chuck Anderson wrote:

alex wrote:

hi everyone i have delete a few entries in my database as they were entered for testing purposes and are no longer need (actually 102 entries)... and even thought that db is empty i noticed that when the next entry went in the id number went to 103 not 0 so i was wondering is it possible to somehow reset the value to zero... it is of int type and auto_increment i have a few db's which id like to reset to zero i have tried placing a zero enrty after deleting the lot but it only jumps to its next increment. does anyone know what i mean...? any help will be grateful regards alex

On a related note (he did say PhpMyAdmin) ... ALTER TABLE 'tablename' auto_increment=n works, but I can't get PhpMyAdmin to reset the auto_increment through the Operations menu page. If I go to the Operations tab for a table and set the auto_increment value to something less that it currently is, PhpMyAdmin will not honor my request and re-specifies the current auto_increment value in the ALTER TABLE command (even though my requested value is valid). Is this because of a config setting? I could have sworn earlier versions would obey my request.

Chuck: This always works for me in PhpMyAdmin (I mistyped it before). 1. Delete the first record. 2. Reset the auto_increment in Operations to whatever you want. 3. Insert a record. 4. Delete that record. After that, the next record will start at the new auto_increment value. Don't ask why, that's just the way it works. tedd That would work, except that I want to change the auto_increment without deleting the first record.

During testing I may add many entries to the end of an existing database table. When I am done testing I want to delete those "extraneous" entries (leaving the earlier entries intact). Call me obsessive/compulsive or whatever, but I like to knock the auto_increment value back down to the next valid value (what was the first "test" value). PhpMyAdmin refuses to use the valid auto_increment value I specify in Operations and I have to edit the query to set it right. -- ***************************** Chuck Anderson • Boulder, CO http://www.CycleTourist.com Integrity is obvious. The lack of it is common. *****************************