Incorrect Syntax Near Keyword 'OPTION' in CTE Statement - sql

Question

I get a "Incorrect syntax near keyword 'OPTION'" error when attempting to save a view in SQL Server 2008. I'm trying to add a MAXRECURSION option to the end of my common table expression. All the examples I've seen and working CTEs I've created before don't mind the "OPTION (MAXRECURSION 0)" at the end of the CTE.
Anyone see why I'm getting this error? The CTE works without the OPTION clause, although it reaches the maximum number of recursions (100).
WITH CTE AS
(
SELECT
CDay,
InvAcct,
BuyerCode,
PartNumber,
ROP,
ROP_ROQ,
DailyDemand,
StartingInvQty,
SchedDeliveryQty,
CAST(StartingInvQty - DailyDemand/2.0 AS decimal(18,4)) AS ProjInvQty
FROM
qryInventorySimulation
WHERE
MBC = 'B' AND
CDay = CAST(CAST(GETDATE()AS date) as datetime)
UNION ALL
SELECT
qryInventorySimulation.CDay,
qryInventorySimulation.InvAcct,
qryInventorySimulation.BuyerCode,
qryInventorySimulation.PartNumber,
qryInventorySimulation.ROP,
qryInventorySimulation.ROP_ROQ,
qryInventorySimulation.DailyDemand,
qryInventorySimulation.StartingInvQty,
qryInventorySimulation.SchedDeliveryQty,
CAST(CTE.ProjInvQty + qryInventorySimulation.SchedDeliveryQty - qryInventorySimulation.DailyDemand AS decimal(18,4)) AS ProjInvQty
FROM
qryInventorySimulation INNER JOIN CTE ON qryInventorySimulation.InvAcct = CTE.InvAcct AND qryInventorySimulation.PartNumber = CTE.PartNumber AND qryInventorySimulation.CDay = DATEADD(d,1,CTE.CDay)
WHERE
qryInventorySimulation.CDay <= DATEADD(d,120,GETDATE())
)
SELECT * FROM CTE
OPTION (MAXRECURSION 0);

Answer 1

You can't apply this option within the view. You would need to apply it to the query calling the view. e.g.
CREATE VIEW dbo.V
AS
WITH CTE AS
( SELECT 1 AS A
UNION ALL
SELECT A + 1
FROM CTE
WHERE A < 50
)
SELECT *
FROM CTE;
GO
SELECT *
FROM dbo.V
OPTION (MAXRECURSION 0);
If you think of a view more as a stored subquery than a stored query (yes it can be called on it's own but it is not necessarily), and remember that its definition is expanded out into the main query (unless you are using NOEXPAND - which you could not on a view that contained a recursive CTE anyway), so in essence you are trying to do something like this:
WITH RecursiveCTE AS (...)
SELECT *
FROM T
INNER JOIN
( SELECT *
FROM RecursiveCTE
OPTION (MAXRECURSION 0)
) c
ON c.SomeField = T.SomeField;
Whereas the correct syntax would be:
WITH RecursiveCTE AS (...)
SELECT *
FROM T
INNER JOIN
( SELECT *
FROM RecursiveCTE
) c
ON c.SomeField = T.SomeField;
OPTION (MAXRECURSION 0)