Question

我试图将数据附加到包含到目前为止的所有数据的表中。每周我都会提取新数据（其中包含已存在于All表中的数据）并添加新记录。我在temp表中添加了一些测试数据，其中泛型，材料num等都不同但是当我运行这个查询时它仍然说它正在添加0条记录。请帮忙。

INSERT INTO ExtWafersAll ( generic, [material number], description, vendor, [net price], [std price], NumberOfDups )
    SELECT
            ExtWafersTemp.generic,
            ExtWafersTemp.[material number],
            ExtWafersTemp.description,
            ExtWafersTemp.vendor,
            ExtWafersTemp.[net price],
            ExtWafersTemp.[std price],
            ExtWafersTemp.NumberOfDups
        FROM ExtWafersTemp
        RIGHT JOIN ExtWafersAll
            ON (ExtWafersAll.NumberOfDups = ExtWafersTemp.NumberOfDups)
                AND (ExtWafersAll.[std price] = ExtWafersTemp.[std price])
                AND (ExtWafersAll.[net price] = ExtWafersTemp.[net price])
                AND (ExtWafersAll.vendor = ExtWafersTemp.vendor)
                AND (ExtWafersAll.description = ExtWafersTemp.description)
                AND (ExtWafersAll.[material number] = ExtWafersTemp.[material number])
                AND (ExtWafersAll.generic = ExtWafersTemp.generic)
        WHERE
            ExtWafersTemp.vendor <> ExtWafersAll.vendor
            OR ExtWafersTemp.description <> ExtWafersAll.description
            OR ExtWafersTemp.[material number] <> ExtWafersAll.[material number]
            OR ExtWafersTemp.generic <> ExtWafersAll.generic;

例如，在ExtWafersTemp中我们有：

Generic   Material Number     Description     Vendor     Net Price     Std Price  
j2151     sjkdga215           xxx125125       TMA        12            14   
asdg      asgasg              aggsggs         asg        15            18

然后在ExtWafersAll：

Generic   Material Number     Description     Vendor     Net Price     Std Price  
j2151     sjkdga215           xxx125125       TMA        12            14

我无法弄清楚如何将temp中的新记录添加到所有文件中

Answer 1

也许这符合您的需求：

insert into ExtWafersAll ( generic, [material number], description, vendor, [net price], [std price], NumberOfDups )
select generic, [material number], description, vendor, [net price], [std price], NumberOfDups
from ExtWafersTemp
except
select generic, [material number], description, vendor, [net price], [std price], NumberOfDups
from ExtWafersAll;

在上面的代码片段中，您可以从ExtWafersTemp表中添加ExtWafersAll表中不存在的记录。这是你想要实现的目标吗？

关于＆＃34;除了＆＃34;你可以在这里阅读的运营商：http://en.wikipedia.org/wiki/Set_operations_%28SQL%29

更新

因为它曾经是MS Access问题，你可以尝试测试一下：

SELECT
  ExtWafersTemp.generic,
  ExtWafersTemp.[material number],
  ExtWafersTemp.description,
  ExtWafersTemp.vendor,
  ExtWafersTemp.[net price],
  ExtWafersTemp.[std price],
  ExtWafersTemp.NumberOfDups
FROM ExtWafersAll RIGHT JOIN ExtWafersTemp 
ON (ExtWafersAll.NumberOfDups = ExtWafersTemp.NumberOfDups
    AND ExtWafersAll.[std price] = ExtWafersTemp.[std price]
    AND ExtWafersAll.[net price] = ExtWafersTemp.[net price]
    AND ExtWafersAll.vendor = ExtWafersTemp.vendor
    AND ExtWafersAll.description = ExtWafersTemp.description
    AND ExtWafersAll.[material number] = ExtWafersTemp.[material number]
    AND ExtWafersAll.generic = ExtWafersTemp.generic)
WHERE ExtWafersAll.NumberOfDups is null
  AND ExtWafersAll.[std price] is null
  AND ExtWafersAll.[net price] is null
  AND ExtWafersAll.vendor is null
  AND ExtWafersAll.description is null
  AND ExtWafersAll.[material number] is null
  AND ExtWafersAll.generic is null

Genarally它是一个以下模式（例如，有一个主键字段 - id）：

select tt.id
from tableall t right join tabletemp tt 
  on (t.id = tt.id)
where t.id is null

希望它有所帮助。

将具有现有记录和新记录的一个表中的新记录添加到SQL中的另一个表中

1 个答案: