how to remove the power from a user ?

[veron_23]

by mistake i gave a user a power in all the database i have.

mysql> grant bla,bla,bla,bla,bla,bla,bla,bla
> on *.*
> to user@localhost
> identified by 'pass';


how can i remove his power from all the databases i have ?

thank you

[Mark Hensler]

Use the REVOKE (http://www.mysql.com/doc/G/R/GRANT.html) query.