3
Мой запрос:view содержит преобразование, которое является неточным или недетерминированным?
IF OBJECT_ID ('vw_F_GWLVL_RAW', 'V') IS NOT NULL
DROP VIEW vw_F_GWLVL_RAW ;
GO
CREATE VIEW vw_F_GWLVL_RAW WITH SCHEMABINDING
AS
SELECT S.SiteName, CAST(D.[Date] as Date) as [Date], CONVERT(CHAR(5),T.[Time]) as [Time], CAST(F.SampleValue as NUMERIC(6,3)) as ValueAsRecorded,
Q.Code as DataQualityCode, Q.QualityDesc as DataQualityDesc
FROM dbo.F_GWLVL_RAW AS F INNER JOIN
dbo.D_Site AS S ON F.D_Site_Key = S.D_Site_Key INNER JOIN
dbo.D_Date AS D ON F.D_Date_Key = D.D_Date_Key INNER JOIN
dbo.D_Time AS T ON F.D_Time_Key = T.D_Time_Key INNER JOIN
dbo.F_ODP_QC_GWLVL AS Q ON Q.[Site] collate database_default = S.[SiteName] AND
(CONVERT(datetime,CAST(D.[Date] as VARCHAR(30))+' '+CAST(T.[Time] as VARCHAR(30)),121) BETWEEN Q.StartTime AND Q.EndTime)
GO
CREATE UNIQUE CLUSTERED INDEX IX_GWLVL_RAW1 ON vw_F_GWLVL_RAW(SiteName,[Date],[Time])
дает мне эту ошибку, даже если мой новообращенный использует детерминированный 121 тип:
'Cannot create index on view "dbo.vw_F_GWLVL_RAW". The view contains a convert that is imprecise or non-deterministic.'
Вы можете прочитать [это сообщение в блоге об опасности использования BETWEEN с метками времени] (http://sqlblog.com/blogs/aaron_bertrand/archive/2011/10/19/what-do-between-and-the-devil-have-in-common.aspx) (особенно в SQL Server) –