invalid value in column mysql.proc.db_collati..

100506 10:00:09 [Warning] Stored routine 'test'.'chips_for_tournamentcancel': invalid value in column mysql.proc.db_collation.
100506 11:05:00 [Warning] Stored routine 'test1'.'calDailyAgentDownlineRake': invalid value in column mysql.proc.character_set_client.
100506 11:05:00 [Warning] Stored routine 'test2'.'calDailyAgentDownlineRake': invalid value in column mysql.proc.collation_connection
use mysql
update proc set character_set_client='utf8',collation_connection='utf8_general_ci',db_collation='utf8_general_ci' where db_collation is null;