mysql 存储过程输入输出参数示例

drop PROCEDURE if exists my_procedure; create PROCEDURE my_procedure(in my_id int,out my_name char) BEGIN select list_name into my_name from aa_list where list_id=my_id; end; call my_procedure(24,@a); select @a;

drop PROCEDURE if exists my_procedure;
create PROCEDURE my_procedure(in my_id int,out my_name char)
BEGIN
select list_name into my_name from aa_list where list_id=my_id;
end;
call my_procedure(24,@a);
select @a;