Question

我正在尝试将表连接到映射表。映射表中包含地理数据，其想法是首先查看最详细的信息，例如Postalcode和mapp，如果没有提供邮政编码，它将查看该区域：

ID  Region  Country Description Zone    County      City            Postal_Code
9324    Australasia Australia   Tasmania    70      Western Shore   7000
9325    Australasia Australia   Tasmania    70      Western Shore   7004
9326    Australasia Australia   Tasmania    70      Western Shore   7005
9327    Australasia Australia   Tasmania    70      Western Shore   7007
9328    Australasia Australia   Tasmania    70      Western Shore   7008
9329    Australasia Australia   Tasmania    70      Western Shore   7009
9330    Australasia Australia   Tasmania    70      Western Shore   7010
9331    Australasia Australia   Tasmania    70      Western Shore   7011
9332    Australasia Australia   Tasmania    70      Western Shore   7012
9333    Australasia Australia   Tasmania    70      Eastern Shore   7015
9334    Australasia Australia   Tasmania    70      Eastern Shore   7016
9335    Australasia Australia   Tasmania    70      Western Shore   7017
9336    Australasia Australia   Tasmania    70      Eastern Shore   7018
9337    Australasia Australia   Tasmania    70      Eastern Shore   7019
9338    Australasia Australia   Tasmania    70      Eastern Shore   7020
9339    Australasia Australia   Tasmania    70      Eastern Shore   7021
9340    Australasia Australia   Tasmania    70      Eastern Shore   7022
9341    Australasia Australia   Tasmania    70      Eastern Shore   7023
9342    Australasia Australia   Tasmania    70      Eastern Shore   7024
9343    Australasia Australia   Tasmania    70      Sorell          7025
9344    Australasia Australia   Tasmania    70      Sorell          7026
9345    Australasia Australia   Tasmania    70      Sorell          7027
9346    Australasia Australia   Tasmania    70      Western Shore   7030
9347    Australasia Australia   Tasmania    70      Kingston        7050
9348    Australasia Australia   Tasmania    70      Kingston        7052
9349    Australasia Australia   Tasmania    70      Kingston        7053
9350    Australasia Australia   Tasmania    70      Kingston        7054
9351    Australasia Australia   Tasmania    70      Kingston        7055

我们的想法是，所有内容都会返回到区域和描述，但加入依赖于提供的数据，因此我尝试格式化的数据是：

COUNTRY STATE   Zone        ZIP     TIV
Australia   NULL    70      NULL    1000000
Australia   NULL    70      NULL    1000000
Australia   NULL    70      NULL    1000000
Australia   NULL    70      NULL    1000000
Australia   NULL    NULL    7023    100000

所以答案如下：

COUNTRY Zone    NAME    Value
Australia   70  Tasmania    4000000

但是我的代码是：

SELECT  GR.COUNTRY,
        GR.ZONE,
        GR.Zone_Desc AS NAME,
        sum(TA.TIV)

FROM [dbo].[Tmp_Format] TA

INNER JOIN [dbo].[GeoRes_Mapping] GR ON TA.COUNTRY = GR.Country AND TA.Zone = GR.Zone

WHERE TA.COUNTRY = 'Australia'

GROUP BY    GR.COUNTRY,
            GR.ZONE,
            GR.Zone_Desc,
            TA.TIV

我实际得到的是：

COUNTRY  ZONE   NAME    Value
Australia   70  Tasmania    112000000

它似乎是将4100000乘以我的映射表中的28个不同区域？抱怨道歉这么久，但我真的很难挣扎

Answer 1

它不是乘以不同的区域，而是乘以邮政编码。每个区域有多个行。也许这会解决你的问题：

SELECT  GR.COUNTRY, GR.ZONE, GR.Zone_Desc AS NAME, sum(TA.TIV)
FROM [dbo].[Tmp_Format] TA INNER JOIN
     (select distinct country, zone, zone_desc
      from [dbo].[GeoRes_Mapping]
     ) GR
     ON TA.COUNTRY = GR.Country AND TA.Zone = GR.Zone
WHERE TA.COUNTRY = 'Australia'
GROUP BY GR.COUNTRY, GR.ZONE, GR.Zone_Desc;

此外，TIV不应该出现在group by。

汇总值不正确

1 个答案: