ORDER BY 子句在视图中无效

Question

我收到此错误：
ORDER BY 子句在视图、内联函数、派生表、子查询和公用表表达式中无效，除非还指定了 TOP 或 FOR XML。 在下面的代码中，尝试从视图中订购时。我该如何解决这个问题？

USE [MYDB]
GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

ALTER VIEW [dbo].[vw_FCoord]
AS
SELECT     FeatId, ISNULL(MLNumber, '') AS MLNumber,
                          (SELECT     Text
                            FROM          dbo.tblFType AS ft
                            WHERE      (FTypeId = dbo.tblFeat.FTypeId)) AS FType, Height, Width, Depth, ISNULL(Description, '') AS Description, 
                                 Latitude, Longitude * - 1 AS Longitude, IsSubsidence, ISNULL(ProjectName, '') 
                      AS ProjectName, ISNULL
                          ((SELECT     Text
                              FROM         dbo.tblFStatusType AS fst
                              WHERE     (FStatusTypeId = dbo.tblFeat.FStatusTypeId)), 'Not Set') AS FStatus, ISNULL
                          ((SELECT     Text
                              FROM         dbo.tblSGType AS st
                              WHERE     (SGTypeId = dbo.tblFeat.SGTypeId)), 'Not Set') AS SGType, SGIsBackfillMaterial, SGDate, 
                      ISNULL(SGDetails, '') AS SGDetails, SGCost, SGIsBatCompatible,
                      (Select COUNT(*) from tblProjectFeat pf where pf.FeatId=dbo.tblFeat.FeatId) NumProjects 
FROM         dbo.tblFeat
WHERE     (Latitude > 0) AND (Longitude > 0)
order by NumProjects asc
GO

Answer 1

您不能在视图中指定ORDER BY 子句。创建不带ORDER BY 的视图，并在从视图中选择时指定ORDER BY 子句：

ALTER VIEW [dbo].[vw_FCoord]
...
GO


SELECT
    *
FROM vw_FCoord
ORDER BY NumProjects ASC