Changing the current count of an Auto Increment value in MySQL?

Question

Currently every time I add an entry to my database, the auto increment value increments by 1, as it should. However, it is only at a count of 47. So, if I add a new entry, it will be 48, and then another it will be 49 etc.

I want to change what the current Auto Increment counter is at. I.e. I want to change it from 47 to say, 10000, so that the next value entered, will be 10001. How do I do that?

Answer 1

You can use ALTER TABLE to set the value of an AUTO_INCREMENT column ; quoting that page :

To change the value of the AUTO_INCREMENT counter to be used for new rows, do this:

ALTER TABLE t2 AUTO_INCREMENT = value; 

There is also a note saying that :

You cannot reset the counter to a value less than or equal to any that have already been used.
For MyISAM, if the value is less than or equal to the maximum value currently in the AUTO_INCREMENT column, the value is reset to the current maximum plus one.
For InnoDB, if the value is less than the current maximum value in the column, no error occurs and the current sequence value is not changed.

Hope this helps !

Answer 2

See manual for ALTER TABLE - this should do it:

ALTER TABLE [tablename] AUTO_INCREMENT = [number]