how to rollback in MySql?

[Digvijoy Chatterjee]

Hi All,

I have just started using My-sql 4.1.9 mysql  Ver 14.7 Distrib 4.1.9,
for pc-linux-gnu (i686)

Is there a way I could rollback  my changes , i tried to go through the
documentation but it wasn't of much help.

regards
Digvijoy