Can I create a View of Function from a Temp Table - sql-server

Question

Can I create a view or function using the below query? It uses temp tables. I am not able to create either a view or function.
--TEmp table--
IF OBJECT_ID('tempdb..#Enquiries') IS NOT NULL
DROP TABLE #Enquiries
GO
CREATE TABLE #Enquiries
(ID INT,PID INT,Name VARCHAR(50),Enquiries INT,EnquiryDate datetime)
INSERT INTO #Enquiries
SELECT ROW_NUMBER()
OVER (ORDER BY ProjectName) AS Row, (SELECT top 1 ITEM FROM DBO.split(e.InterestedProjects,',')) as Projects,P.ProjectName,COUNT(CAST(EnquiryDate AS DATE)) AS Enquiries,CAST(EnquiryDate AS DATE) AS EnquiryDate
FROM tbl_Enquiry e INNER JOIN
tbl_Projects AS P ON P.ProjectId = (SELECT TOP 1 ITEM FROM DBO.split(e.InterestedProjects,','))
WHERE e.IsActive=1 and e.isdeleted=0 AND p.IsActive=1 AND p.IsDeleted=0 AND P.ProjectId IN (SELECT TOP 1 ITEM FROM DBO.split(e.InterestedProjects,','))
GROUP BY e.InterestedProjects,P.ProjectName,CAST(EnquiryDate AS DATE)
--SiteVisits
IF OBJECT_ID('tempdb..#SiteVisit') IS NOT NULL
DROP TABLE #SiteVisit
GO
CREATE TABLE #SiteVisit
(ID INT,PID INT,Name VARCHAR(50),Sitevisits INT,PickUpDatetime datetime)
INSERT INTO #SiteVisit
SELECT ROW_NUMBER() OVER (ORDER BY ProjectName) AS Row,s.ProjectId,p.ProjectName As Name,count(sd.PickUpDatetime) AS Sitevisits,CAST(PickUpDatetime AS DATE) AS PickUpDatetime FROM tbl_SiteVisit s
INNER JOIN tbl_SiteVisitDetails sd ON s.SiteVisitId=sd.SiteVisitId
INNER JOIN tbl_Projects p ON p.ProjectId=s.ProjectId
WHERE s.IsActive=1 and s.isdeleted=0 AND sd.isactive=1 AND sd.isdeleted=0
GROUP BY s.ProjectId,sd.PickUpDatetime,p.ProjectName,CAST(PickUpDatetime AS DATE)
--Bookings
IF OBJECT_ID('tempdb..#Bookings') IS NOT NULL
DROP TABLE #Bookings
GO
CREATE TABLE #Bookings
(ID INT,PID INT,Name VARCHAR(50),Bookings INT,BookingDate datetime,Revenue money,Area float)
INSERT INTO #Bookings
SELECT ROW_NUMBER() OVER (ORDER BY ProjectName) AS Row, u.ProjectId AS ProjectId,p.ProjectName,count(u.ProjectId) AS Bookings,CAST(b.BookingDate AS DATE) AS BookingDate,SUM(b.TotalAmount) AS [Revenue],SUM(u.UnitArea) AS [Area] FROM tbl_Bookings b
INNER JOIN tbl_Unit u ON b.UnitId=u.UnitId
INNER JOIN tbl_Projects p on p.ProjectId=u.ProjectId
WHERE b.IsActive=1 AND b.IsDeleted=0 and u.IsActive=1 AND u.IsDeleted=0 AND u.Status = 'B'
GROUP BY u.ProjectId,p.ProjectName,CAST(b.BookingDate AS DATE),b.TotalAmount,u.UnitArea
--ORDER BY u.ProjectId
IF OBJECT_ID('tempdb..#T1') IS NOT NULL
DROP TABLE #T1
create TABLE #T1 (
PrimaryNo INT,
EnquiryDate Date,
Enquiries INT,
SiteVisits INT,
Bookings INT,
Revenue Money,
Area Float,
PID INT,
ProjectName nvarchar(max)
)
INSERT INTO #T1(PrimaryNo,EnquiryDate,Enquiries,PID,ProjectName)
SELECT ID,EnquiryDate,sum(enquiries) AS Enquiries,PID,Name FROM #Enquiries GROUP BY id,pid,Name,enquirydate
DECLARE #SVDate date
DECLARE #SV11 INT
DECLARE #BookingDate Date
DECLARE #Bookings11 INT
DECLARE #Revenue11 MONEY
DECLARE #Area11 FLOAT
DECLARE #intFlag_pw11 INT
SET #intFlag_pw11 = 1
DECLARE #TableCntw11 INT
DECLARE #Date Date
DECLARE Cur_SiteVisit CURSOR FAST_FORWARD FOR
SELECT PickUpDatetime FROM #SiteVisit
OPEN Cur_SiteVisit
FETCH NEXT FROM Cur_SiteVisit INTO #Date
DECLARE #ProjectId INT
DECLARE #Count INT = 1
WHILE ##FETCH_STATUS = 0
BEGIN
SET #ProjectId = (SELECT PID FROM #SiteVisit WHERE ID = #Count)
SET #SVDate = ISNULL((SELECT CAST(PickUpDatetime AS DATE) FROM #SiteVisit
WHERE CAST(PickUpDatetime AS DATE) = #Date AND PID = #ProjectId
GROUP BY PickUpDatetime),'-')
SET #SV11 = ISNULL((SELECT Sitevisits FROM #SiteVisit
WHERE CAST(PickUpDatetime AS DATE) = #Date AND PID = #ProjectId
GROUP BY Sitevisits),0)
EXEC ('UPDATE #T1 SET SiteVisits = ' + #SV11 + ' WHERE EnquiryDate = ' + ''''+ #SVDate +''' AND PID =' + #ProjectId)
FETCH NEXT FROM Cur_SiteVisit INTO #Date
SET #Count = #Count + 1
END
CLOSE Cur_SiteVisit
DEALLOCATE Cur_SiteVisit
--For Bookings
DECLARE #Date1 Date
DECLARE Cur_Bookings CURSOR FAST_FORWARD FOR
SELECT BookingDate FROM #Bookings
OPEN Cur_Bookings
FETCH NEXT FROM Cur_Bookings INTO #Date1
DECLARE #ProjectId1 INT
DECLARE #Count1 INT = 1
WHILE ##FETCH_STATUS = 0
BEGIN
SET #ProjectId1 = (SELECT PID FROM #Bookings WHERE ID = #Count1)
SET #Bookings11 = ISNULL((SELECT TOP 1 Bookings FROM #Bookings
WHERE CAST(BookingDate AS DATE) = #Date1 AND PID = #ProjectId1
GROUP BY Bookings),0)
SET #BookingDate = ISNULL((SELECT TOP 1 CAST(BookingDate AS DATE) FROM #Bookings
WHERE CAST(BookingDate AS DATE) = #Date1 AND PID = #ProjectId1
GROUP BY CAST(BookingDate AS DATE)),'-')
SET #Revenue11 = ISNULL((SELECT TOP 1 Revenue FROM #Bookings
WHERE CAST(BookingDate AS DATE) = #Date1 AND PID = #ProjectId1
GROUP BY Revenue),0)
SET #Area11 = ISNULL((SELECT TOP 1 Area FROM #Bookings
WHERE CAST(BookingDate AS DATE) = #Date1 AND PID = #ProjectId1
GROUP BY Area),0)
EXEC ('UPDATE #T1 SET Bookings = ' + #Bookings11 + ',Revenue=' + #Revenue11 + ',Area = ' + #Area11 + ' WHERE EnquiryDate = ' + '''' + #BookingDate + ''' AND PID =' + #ProjectId1)
FETCH NEXT FROM Cur_Bookings INTO #Date1
SET #Count1 = #Count1 + 1
END
CLOSE Cur_Bookings
DEALLOCATE Cur_Bookings
Select * from #T1

Answer 1

You can't create a view from that, if only because you're doing a number of inserts and other actions. A view is created from a single query.
With regard to user-defined functions: you cannot use dynamic SQL, which you are doing:
EXEC ('UPDATE #T1 SET Bookings = ' + #Bookings11 + ',Revenue=' + #Revenue11 +
',Area = ' + #Area11 + ' WHERE EnquiryDate = ' + '''' + #BookingDate +
''' AND PID =' + #ProjectId1)
You also can't use temp tables. Both of these limitations are documented here: http://msdn.microsoft.com/en-us/library/ms191320.aspx.
But, you can do all of these things in a stored procedure. It is also possible to direct the output of a stored procedure to a temp table or table variable, allowing you to use the output in another query:
INSERT INTO dbo.MyTable
(MyTableId, Column1, Column2) -- arbitrary-chosen column names
EXEC dbo.MyStoredProcedure
SELECT *
FROM dbo.MyTable
WHERE Column1 = 'Some Value'
Finally, you might be able to rework your SQL to work with table variables rather than temp tables, which are allowed. It also looked to me like your dynamic SQL didn't need to be dynamic, so you might be able to eliminate that as well.
Hope this helps.