如何防止此SQL语句中的重复项？

Question

我有两个表1. tdppackages和2. tpdstop,我做一个SQL SELECT INNER JOIN创建一个TableAdapter,其中包含两个信息,我想不添加重复记录.这是我的SQL语句:

SELECT     tdppackages.trackno, 
           tdppackages.shpmentno, 
           tpdstop.custname, 
           tpdstop.address, 
           tpdstop.city, 
           tdppackages.amtdue, 
           tpdstop.pkgs, 
           tpdstop.ndx
FROM       tpdstop 
INNER JOIN tdppackages ON tpdstop.ndx = tdppackages.stopkey

Answer 1

将SELECT更改为SELECT DISTINCT是最快的方法.