mysql中修改存储过程的命令是什么？

mysql> SHOW CREATE PROCEDURE showstuscore \G

*************************** 1. row ***************************

           Procedure: showstuscore

            sql_mode: STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

    Create Procedure: CREATE DEFINER=`root`@`localhost` PROCEDURE `showstuscore`()

    MODIFIES SQL DATA

    SQL SECURITY INVOKER

BEGIN

SELECT id,name,score FROM studentinfo;

END

character_set_client: gbk

collation_connection: gbk_chinese_ci

  Database Collation: latin1_swedish_ci

1 row in set (0.00 sec)