mysql 的存储过程

定义不带参数的存储过程

CREATE PROCEDURE s1()

BEGIN
select * from ecs_admin_action;
End

call s1;

2.带输入参数的

create PROCEDURE s2(in id int)
BEGIN
select * from ecs_admin_action where action_id=id;
END

set @id=3;
call s2(@id);

3.带输出参数

create PROCEDURE s3 (out a varchar(20))
BEGIN
select action_code into a from ecs_admin_action where action_id=3;
END

set @a='';
call s2(@a);
select @a;