MYSQLストアドプロシージャタイミング操作データベース

    2   ，           ：
create procedure clear_table()
begin
   drop database XXX
end

           ：
  event    : show variables like '%sche%'; 
       : set global event_scheduler=1; 
      : alter event e_test ON COMPLETION PRESERVE DISABLE; 
      : alter event e_test ON COMPLETION PRESERVE ENABLE; 

   event e_test 
     CREATE EVENT if not exists e_test 
          on schedule every 30 second 
          on completion preserve 
     do call clear_table();

 
 
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