Sql server SQL数据比较

我有两个表，其中所有列都相同。下面是包含数据的脚本

CREATE TABLE [dbo].[Tbl_Prices_2]
(
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [State] [varchar](50) NULL,
    [MajorRegion] [varchar](50) NULL,
    [ProductGroup] [varchar](50) NULL,
    [PriceToRetailer] [decimal](18, 2) NULL,
    [PriceToAgent] [decimal](18, 2) NULL,
    [PriceToDistributor] [decimal](18, 2) NULL,
    [PriceToAdmin] [decimal](18, 2) NULL,

    CONSTRAINT [PK_Tbl_Prices_2] 
       PRIMARY KEY CLUSTERED ([ID] ASC)
)
GO

SET IDENTITY_INSERT [dbo].[Tbl_Prices_2] ON

INSERT [dbo].[Tbl_Prices_2] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (1, N'Assam', N'ABC', N'AIRTEL', CAST(1.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)), CAST(2.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)))
INSERT [dbo].[Tbl_Prices_2] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (2, N'Bihar', N'XYZ', N'IDEA', CAST(1.00 AS Decimal(18, 2)), CAST(4.00 AS Decimal(18, 2)), CAST(2.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)))
INSERT [dbo].[Tbl_Prices_2] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (3, N'Goa', N'PQR', N'AIRCEL', CAST(2.00 AS Decimal(18, 2)), CAST(5.00 AS Decimal(18, 2)), CAST(4.00 AS Decimal(18, 2)), CAST(6.00 AS Decimal(18, 2)))
SET IDENTITY_INSERT [dbo].[Tbl_Prices_2] OFF

CREATE TABLE [dbo].[Tbl_Prices_1]
(
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [State] [varchar](50) NULL,
    [MajorRegion] [varchar](50) NULL,
    [ProductGroup] [varchar](50) NULL,
    [PriceToRetailer] [decimal](18, 2) NULL,
    [PriceToAgent] [decimal](18, 2) NULL,
    [PriceToDistributor] [decimal](18, 2) NULL,
    [PriceToAdmin] [decimal](18, 2) NULL,

    CONSTRAINT [PK_Tbl_Prices_1] 
      PRIMARY KEY CLUSTERED ([ID] ASC)
)

SET IDENTITY_INSERT [dbo].[Tbl_Prices_1] ON
INSERT [dbo].[Tbl_Prices_1] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (1, N'Assam', N'ABC', N'AIRTEL', CAST(1.00 AS Decimal(18, 2)), CAST(1.00 AS Decimal(18, 2)), CAST(2.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)))
INSERT [dbo].[Tbl_Prices_1] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (2, N'Bihar', N'XYZ', N'IDEA', CAST(1.00 AS Decimal(18, 2)), CAST(1.00 AS Decimal(18, 2)), CAST(2.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)))
INSERT [dbo].[Tbl_Prices_1] ([ID], [State], [MajorRegion], [ProductGroup], [PriceToRetailer], [PriceToAgent], [PriceToDistributor], [PriceToAdmin]) VALUES (3, N'Goa', N'PQR', N'AIRCEL', CAST(6.00 AS Decimal(18, 2)), CAST(3.00 AS Decimal(18, 2)), CAST(4.00 AS Decimal(18, 2)), CAST(6.00 AS Decimal(18, 2)))
SET IDENTITY_INSERT [dbo].[Tbl_Prices_1] OFF

我需要比较每个州和主要地区的价格。我需要以下输出：

TableName      ID    State   MajorRegion ProductGroup  Col_Difference   Value
-------------------------------------------------------------------------------
Tbl_Prices_1   1     Assam   ABC         AIRTEL          PriceToAgent     1
Tbl_Prices_2   1     Assam   ABC         AIRTEL          PriceToAgent     3 
Tbl_Prices_1   1     Goa     PQR         AIRCEL          PriceToRetailer  2
Tbl_Prices_2   1     Goa     PQR         AIRCEL          PriceToRetailer  3 

这里Col_Difference显示了列名

select 'Tbl_Prices_1' as [tableName], Tbl_Prices_1.ID, 
       'PriceToAgent' as [Col_Difference], Tbl_Prices_1.PriceToAgent
  from Tbl_Prices_1 
  join Tbl_Prices_2 
    on Tbl_Prices_2.ID = Tbl_Prices_1.ID
   and Tbl_Prices_2.PriceToAgent <> Tbl_Prices_1.PriceToAgent
union 
select 'Tbl_Prices_2' as [tableName], Tbl_Prices_2.ID, 
       'PriceToAgent' as [Col_Difference], Tbl_Prices_2.PriceToAgent
  from Tbl_Prices_2 
  join Tbl_Prices_1 
    on Tbl_Prices_2.ID = Tbl_Prices_1.ID
   and Tbl_Prices_2.PriceToAgent <> Tbl_Prices_1.PriceToAgent

---

…

首先，在你的例子中，尽量避免使用任何品牌、实体的名称。。就像这里你用的“Airtel”，“Aircel”谢谢，假设我在“Tbl_Prices_1”和“Tbl_Prices_2”表中有100个克隆，那么我需要联合100次？呜呜。这应该需要10分钟。