Change control in MySQL

Hi,

I would like to know how to do change control in MySQL. For example, if I have changed something in a cell, is there any log file which can indicate what has been changed, when it has been changed and who has changed it? See the concept at

http://en.wikipedia.org/wiki/Change_control

My another question is that how the Bitwise function is applied to the financial database, as my gut feeling told me that there is a risk for using the function for the financial database

Well, it’s possible to find it all in binary logs, except ‘who has changed it’

[B]debug wrote on Tue, 17 June 2008 00:37[/B]
Well, it's possible to find it all in binary logs, except 'who has changed it'

The 'who’s ) could be find in the normal log.