mysql存储过程

1，把一个表中的字段更新到另一个表中

delimiter //
drop procedure if exists pro_test;
create procedure pro_test(out parm int)
begin
declare i int;
set i=1;
while i <= 50 do
update room_room set providers_id=i+5 where providers_url like concat('/space_pic/test%',i,'%');
set i=i+1;
end while;
end //
delimiter ;