儲存過程4 查詢資料

drop procedure if exists proc_name;

delimiter //
create procedure proc_name (in parameter integer)
begin
if parameter=0 then
select * from student order by no asc;
else
select * from student order by height asc;
end if;
end;
//delimiter ;
call proc_name(0);
+--------+----------+--------+
| no     | name     | height |
+--------+----------+--------+
| 122654 | wangwu   |   1.36 |
| 123654 | zhangsan |   1.56 |
| 129854 | lisi     |   1.16 |
+--------+----------+--------+
call proc_name(5);
+--------+----------+--------+
| no     | name     | height |
+--------+----------+--------+
| 129854 | lisi     |   1.16 |
| 122654 | wangwu   |   1.36 |
| 123654 | zhangsan |   1.56 |
+--------+----------+--------+

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