存储过程输出参数(不能添加重复数)

 1 ------------------------------------
 2 --用途：员工管理 
 3 --时间：2011-2-24 8:18:31
 4 ------------------------------------ 
 5 alter proc DKI_StaffManage
 6 (
 7    @CMD varchar(20)='',
 8    @staffcode varchar(50)='',
 9    @staffName varchar(50)='', 
10    @flg int=0,              
11    @returnvalues int=0 output
12 )
13 as
14 begin tran
15 if(@CMD='select')          
16   begin  
17       if(@flg=1) 
18         begin   
19            select top 100 * from Opt_DKI_Staff order by staffID desc
20         end
21        else if(@flg=2)   ---2为查询
22          begin
23           select * from Opt_DKI_Staff where 
24          end 
25   end     
26 else if(@CMD='insert')
27    begin    
28   if (select count(*) from Opt_DKI_Staff where 0">StaffCode=@staffcode)>0
29   begin     
30     set @returnvalues=0         
31   end 
32   else
33   begin 
34     insert into Opt_DKI_Staff (StaffCode,StaffName) values (@staffcode,@staffName) 
35     set @returnvalues=1   
36   end 
37    end
38 else if(@CMD='update')
39    begin     
40    update Opt_DKI_Staff set where   
41    end 
42 else if(@CMD='delete')
43   begin
44   delete Opt_DKI_Staff where   
45   end
46 commit tran
47 return