Question

我尝试构建索引视图但返回重复键错误，有关该怎么做的建议？视图正在分组时，我无法使用原始表的主键。

非常感谢，

乔纳森

USE [IHG_MST]
GO    

SET NUMERIC_ROUNDABORT OFF
SET ANSI_PADDING, ANSI_WARNINGS, CONCAT_NULL_YIELDS_NULL, ARITHABORT,
    QUOTED_IDENTIFIER, ANSI_NULLS ON
GO

CREATE VIEW [dbo].[bvw_Grouped_Delphi_optimised] 
WITH SCHEMABINDING
AS
  SELECT       
   count_big(*) as tmp,
   SUM(isnull(id, 0)) as ID, 
   Holidex_Code, Export_Date, Account, PostAs, 
   StatusText, BookedByID, BookedByFullName, 
   EventStartDate, PropertyPID, PropertyName, 
   MtgClassName, BookingMarketSegment, 
   SUM(isnull(TotalFunctionRevenue, 0)) AS TotalFunctionRevenue, 
   SUM(isnull(FoodRevenue, 0)) AS FoodRevenue, 
   SUM(isnull(BevRevenue, 0)) AS BevRevenue, 
   SUM(isnull(RentalRevenue, 0)) AS RentalRevenue, 
   SUM(isnull(ResourceRevenue, 0)) AS ResourceRevenue, 
   SUM(isnull(AgreedRooms, 0)) AS AgreedRooms, 
   SUM(isnull(TotalRevenue, 0)) AS TotalRevenue, 
   SUM(isnull(CurrentRooms, 0)) AS CurrentRooms, 
   SUM(isnull(ExpectedAttendance,0)) AS ExpectedAttendance, 
   SUM(isnull(TotalGuestroomRevenue,0)) AS TotalGuestroomRevenue, 
   CreatedDate, LeadSource, LostReason, EventType, 
   FunctionRoomName, ReportGrouping, BookingID, ExtractDate, 
   BookingAbbrev, Uploaded_By, Uploaded_On
FROM
   dbo.MST_Delphi_Bookings
WHERE        
   (Holidex_Code IS NOT NULL) 
   AND (ReportGrouping <> 'Booking') 
   AND (LostReason <> 'Operator Entry Error') 
   AND (LostReason <> 'test call')
GROUP BY 
   Holidex_Code, Export_Date, Account, PostAs, StatusText, BookedByID, 
   BookedByFullName, EventStartDate, PropertyPID, PropertyName, MtgClassName, 
   BookingMarketSegment, CreatedDate, LeadSource, LostReason, EventType, 
   FunctionRoomName, ReportGrouping, BookingID, ExtractDate, BookingAbbrev, 
   Uploaded_By, Uploaded_On
GO


CREATE UNIQUE CLUSTERED INDEX IX_Delphi_Holidex_Code 
ON [dbo].[bvw_Grouped_Delphi_optimised](Holidex_Code, Export_Date)
GO

错误：

Msg 1505，Level 16，State 1，Line 1
CREATE UNIQUE INDEX语句终止，因为找到了对象名称的重复键＆quot; dbo.bvw_Grouped_Delphi_optimised＆＃39;和索引名称＆＃39; IX_Delphi_Holidex_Code＆＃39;。重复键值为（ASDKE，2014-03-24）。

@usr：

CREATE UNIQUE CLUSTERED INDEX IX_Delphi_Holidex_Code 
ON [dbo].[bvw_Grouped_Delphi_optimised](Holidex_Code, Export_Date, Account, PostAs, 
   StatusText, BookedByID, BookedByFullName, 
   EventStartDate, PropertyPID, PropertyName, 
   MtgClassName, BookingMarketSegment, 
   SUM(isnull(TotalFunctionRevenue, 0)) AS TotalFunctionRevenue, 
   SUM(isnull(FoodRevenue, 0)) AS FoodRevenue, 
   SUM(isnull(BevRevenue, 0)) AS BevRevenue, 
   SUM(isnull(RentalRevenue, 0)) AS RentalRevenue, 
   SUM(isnull(ResourceRevenue, 0)) AS ResourceRevenue, 
   SUM(isnull(AgreedRooms, 0)) AS AgreedRooms, 
   SUM(isnull(TotalRevenue, 0)) AS TotalRevenue, 
   SUM(isnull(CurrentRooms, 0)) AS CurrentRooms, 
   SUM(isnull(ExpectedAttendance,0)) AS ExpectedAttendance, 
   SUM(isnull(TotalGuestroomRevenue,0)) AS TotalGuestroomRevenue, 
   CreatedDate, LeadSource, LostReason, EventType, 
   FunctionRoomName, ReportGrouping, BookingID, ExtractDate, 
   BookingAbbrev, Uploaded_By, Uploaded_On)
GO

Answer 1

您必须创建唯一的聚簇索引。文档清楚地表明没有办法绕过它。

如果您的数据在任何密钥上都不是唯一的，这通常是数据质量问题，概念错误是一个彻头彻尾的错误。因此，我建议你重新评估这个设计。

如果您坚持这样做，必须发明/编造某些唯一键。幸运的是，所有具有分组的查询都有这样一个键：分组列。将这些列添加到视图中并在其上创建索引。

这在逻辑上是您视图的主键。对事物进行分组会导致某些事情发生。在输出中是独一无二的。

如何在SQL Server中创建索引视图

1 个答案: