主题：排除重复值

参考

http://blog.csdn.net/anya/article/details/6407280/

"select * from {工序库} where 物料编码 = '" & cur & "' and 第二列 in (select 第二列 from {工序库} group by 第二列 having count(第二列) > 1)"

"Select * From {工序库} where 物料编码 = '" & cur & "' and _Identify in (select min(_Identify)  from {工序库} group by  部件名称)"