Question

consider this sql

CREATE VIEW [dbo].[MyView1] ([ID],[VisitDate],[StartDate] ,[EndDate],[MyCount])
WITH SCHEMABINDING  

AS
SELECT     id, VisitDate,dateadd(dd,-10,VisitDate),dateadd(dd,10,VisitDate),
count_BIG(*)as MyCount
FROM         dbo.Visits2
group by id,VisitDate

I am trying to create a clustered index on this view on id,VisitDate.I am getting the following error.

Cannot create the clustered index ‘IX_!!’ on view ‘CI_DB.dbo.MyView4’
because the select list of the view contains an expression on result of
aggregate function or grouping column.
Consider removing expression on result of aggregate function or
grouping column from select list.

Answer 1

Changed the sql to

    CREATE VIEW [dbo].[MyView2] ([ID],[VisitDate],[StartDate] ,[EndDate],[MyCount])
WITH SCHEMABINDING  

AS
SELECT     id, VisitDate,
dateadd(day,duration,VisitDate) startdate
,dateadd(day,duration,VisitDate) enddate,
count_BIG(*)as MyCount
FROM         dbo.Visits3
group by id,VisitDate,dateadd(day,duration,VisitDate),dateadd(day,duration,VisitDate)

GO

Seems like you cant specify a direct value like 10 inside the function and group by clause.Now it works!!