游标替代品?

时间:2015-06-18 10:01:48

标签: mysql sql

它让我害怕MYSQL中的语法游标。可以替代吗?

我发现了这种方式:

drop procedure if exists emp_performance;

delimiter #

create procedure emp_performance
(
in p_employee_id varchar(10)
)
begin

declare v_counter int unsigned default 0;

drop temporary table if exists tmp;
create temporary table tmp engine=memory select * FROM sup  where id > p_employee_id;

-- do stuff with tmp...

select count(*) into v_counter from tmp;

-- output and cleanup

select * from tmp;

end#

delimiter ;

call emp_performance(2);

SELECT * FROM tmp; //return  results

如果你有其他方法,或者你能找到我提出的错误/遗漏方法吗?

0 个答案:

没有答案