批量修改表引擎

批量修改表引擎

drop   procedure   if   exists  sp_TableEng;
create   procedure   sp_TableEng(dbname  varchar ( 50 ))
BEGIN
    
     DECLARE  done  INT   DEFAULT   0 ;
     DECLARE  v_tbname  varchar ( 500 )  default   '' ;
   DECLARE  v_schema  varchar ( 500 )  default   '' ;
  
     --  显示总记录数
    
   DECLARE  curPos  CURSOR   FOR   select  table_schema,table_name  from  information_schema.tables  where  table_schema  in (dbname)  and  engine = ' InnoDB ' ;
   DECLARE   CONTINUE  HANDLER  FOR   NOT  FOUND  SET  done = 1 ;
  
   select   count ( * )  from  information_schema.tables  where  table_schema  in (dbname)  and  engine = ' InnoDB ' ;
  
   OPEN  curPos;
  
  REPEAT
              FETCH  curPos  INTO  v_schema,v_tbname;
             
              if   not  done  then
                 
                    set   @sql_delete   = concat( ' alter table  ' ,v_schema, ' . ' ,v_tbname,  '  engine= '' MyISAM ''' );                   
                          prepare  sql_del  from   @sql_delete ;
                       execute  sql_del;
                       
               end   if ;
              
  UNTIL done  END  REPEAT;
  
   close  curPos;

end ;