Question

我的sql server中有一个名为VendorItemPricing的表。

select * from VendorItemPricing  where ItemID = 122

此查询将为我提供以下结果。

ItemID    VendorName    VendorPrice    UpdatedDate                ObsoleteItem
122       HP            215.13         2015-05-15 11:55:49.983    0
122       IBM           264.41         2015-05-15 11:56:04.990    0
122       Microsoft     257.65         2015-05-15 11:56:23.963    0

我希望HP，Apple，...列在行的列上，所以我使用了数据透视表

Select ItemID,
[HP] As HPUpdatedDate,
[Apple] As AppleUpdatedDate,
[Microsoft] As MicrosoftUpdatedDate,
[IBM] As IBMUpdatedDate from (
select Itemid,Vendorname,UpdatedDate from VendorItemPricing where ItemID = 122)A
PIVOT(
MAX(UpdatedDate) FOR Vendorname IN ([HP],[Apple],Microsoft,IBM)
)P

以上查询结果如：

ItemID  HPUpdatedDate               AppleUpdatedDate    MicrosoftUpdatedDate        IBMUpdatedDate
122     2015-05-15 11:55:49.983     NULL                2015-05-15 11:56:23.963     2015-05-15 11:56:04.990

和

Select ItemID,
[HP] As HPPrice ,
[Apple] As ApplePrice,
[Microsoft] As MicrosoftPrice,
[IBM] As IBMPrice from (
select Itemid,Vendorname,VendorPrice from VendorItemPricing where ItemID = 122)A
PIVOT(
MAX(VendorPrice) FOR Vendorname IN ([HP],[Apple],Microsoft,IBM)
)P

以上查询结果如：

ItemID  HPPrice     ApplePrice      MicrosoftPrice  IBMPrice
122     215.13      NULL            257.65          264.41

和

Select ItemID,
[HP] As HPObsoleteItem,
[Apple] As AppleObsoleteItem,
[Microsoft] As MicrosoftObsoleteItem,
[IBM] As IBMObsoleteItem  from (
select Itemid,Vendorname,CAST(ObsoleteItem AS TINYINT) AS INTColumn from VendorItemPricing where ItemID = 122)A
PIVOT(
MAX(INTColumn) FOR Vendorname IN ([HP],[Apple],Microsoft,IBM)
)P

以上查询结果如：

ItemID      HPObsoleteItem      AppleObsoleteItem       MicrosoftObsoleteItem   IBMObsoleteItem
122         0                   NULL                    0                       0

是否有可能获得如下结果？抱歉这个冗长的问题。任何帮助都感激不尽。

ItemID  HPUpdatedDate               AppleUpdatedDate    MicrosoftUpdatedDate        IBMUpdatedDate              HPPrice     ApplePrice  MicrosoftPrice  IBMPrice        HPObsoleteItem      AppleObsoleteItem   MicrosoftObsoleteItem   IBMObsoleteItem
122     2015-05-15 11:55:49.983     NULL                2015-05-15 11:56:23.963     2015-05-15 11:56:04.990     215.13      NULL        257.65          264.41          0                   NULL                0                       0

Answer 1

您可以使用子查询或CTE，然后根据ItemID连接所有三个查询以获取所有必要字段：

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如何在数据透视表上拥有多个列？

1 个答案: