MsAccess中的减号查询

问题描述：

MS ACCESS中减号查询的正确语法是什么

What is the correct syntax for Minus Query in MS ACCESS

我想比较2个查询的整个结果集，而不仅仅是键列比较

I want to compare entire result set of 2 queries not just only key column comparisons

例如:

您好表格数据:id，名称，地址

hello table data: id,name,address

hello1表数据:new_id，new_name，new_address

hello1 table data:new_id,new_name,new_address

我想找出谁是所有在任何列中更改数据的客户.

I want to find out who are all the customers with changed data in any column.

我给出了以下查询.它失败了

I had given following query .it failed

select h.* from hello h
minus
select h1.* from hello1 h1

请让我知道正确的查询

答

一种可能性不在. MS Access中没有负号查询.

One possibility is NOT IN. There is no such thing as a minus query in MS Access.

select h.* from hello h
WHERE uniqueid NOT IN
(select uniqueid from hello1 h1)

对于纯sql解决方案，您需要说:

For a purely sql solution, you need, say:

SELECT t.* FROM Table t
LEFT JOIN NewTable n
ON t.ID = n.ID
WHERE t.Field1 & "" <> n.Field1 & ""
   OR t.Field2 & "" <> n.Field2 & ""

但是，使用VBA更容易.

However, it is easier using VBA.