-- 函数、存储过程
  select definer from mysql.proc; 
 
  update mysql.proc set definer='billing@%'; 
 
  -- 定时事件 
 
  select DEFINER from mysql.EVENTS; 
 
  update mysql.EVENTS set definer='billing@%'; 
 
  --视图 
 
  select DEFINER from information_schema.VIEWS;    
 
  select concat("alter DEFINER=`root`@`%` SQL SECURITY DEFINER VIEW ",TABLE_SCHEMA,".",TABLE_NAME," as ",VIEW_DEFINITION,";") from information_schema.VIEWS where DEFINER<>'billing@%';  
 
  --触发器 
 
  select DEFINER from information_schema.TRIGGERS; 
					