日期:2014-05-18  浏览次数:20455 次

存儲過程問題
--產生傳票號碼   @CpNoDate:傳票日期(8位)   @JmpNo:為要跳過的傳票號碼(流水號)   @CpNo:輸出(流水號)
create   procedure   prc_GetCpNo     (@CpNoDate   char(8),@JmpNo   int,@CpNo   int   output)     with   ENCRYPTION
as
declare   @d33no   char(12),@tmpI   int  
set   nocount   on
declare   Cp_cursor   cursor   for   Select   distinct   D33NO   from   Dt3_3   Where   D33DT=@CpNoDate   order   by     D33NO   for   read   only
open   Cp_cursor
fetch     next   from   Cp_cursor   into   @d33no
if   @@fetch_status=-1
begin
set   @CpNo=0
if   @JmpNo=@CpNo   set   @CpNo=@CpNo
end
        else
begin
set   @tmpi=0
while   @tmpi <=1
begin
if   right(@d33no,4) <> '0000 '   and   @tmpi=0
set   @cpno=0
else
begin
if   @cpno   is   null  
begin
set   @cpno=convert(int,right(@d33no,4))
fetch   next   from   Cp_cursor   into   @d33no
end  
while   @@fetch_status=0
begin
if   convert(int,right(@d33no,4))-@cpno> 1   if   @JmpNo <> @cpno+1   break
set   @cpno=convert(int,right(@d33no,4))
fetch   next   from   Cp_cursor   into   @d33no
end
set   @cpno=@cpno+1
end
if   @jmpno <> @cpno  
set   @tmpi=1
                                        else
if   @@fetch_status=-1  
begin
set   @cpno=@cpno+1
set   @tmpi=1
end
set   @tmpi=@tmpi+1
end--while   @tmpi結束
end
close   Cp_cursor
deallocate   Cp_cursor
set   nocount   off

此過程在何時就在已查到的d33no上加1?何是就返回原來的d33no?



------解决方案--------------------
他的返回值是@CpNo,你看看@CpNo這個變量的賦值過程。

另外,感覺這個寫複雜了,生成流水號應該不至於要寫的這麼複雜的。