create PROCEDURE yd_StudInfo
@class char(10)
as
Select CASE Sex WHen '1' THEN '男' WHen '0' THEN '女' end as Sex from StudInfo
select * from StudInfo where Class=@Class
GO
EXEC yd_StudInfo @class='应用1001'
GO

Select CASE Sex WHen '1' THEN '男' WHen '0' THEN '女' end as Sex from StudInfo
select * from StudInfo where Class=@Class
->
Select stuno, name, CASE Sex WHen '1' THEN '男' WHen '0' THEN '女' end as Sex, idno, mobile, courseno, class from StudInfo where Class=@Class