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blitzclipse
#1 Posted : Tuesday, November 16, 2010 5:07:19 PM
Rank: Member
Groups: Member

Joined: 1/15/2010
Posts: 13
Location: us
I am trying to query AF with PI Oledb. I can get the query to work inside sql commander and vba; however, I wish to set it up in a stored procudure to recalculate an AF equation at evenly spaced times. Then I wish to total the results of the query inside sql and send the result to PI via oledb. So, I set up a linked server in sql server mangement called AFLINK. Then I tried my query for AF inside sql server mangement, and I get the following error:

Msg 4122, Level 16, State 1, Line 9
Remote table-valued function calls are not allowed.



My query is as follows:
SELECT eh.Name Element, ea.Name Attribute, i.Time, i.Value
FROM AFLINK.PIAFDB.Asset.ElementHierarchy eh
INNER JOIN AFLINK.PIAFDB.Asset.ElementAttribute ea ON ea.ElementID = eh.ElementID
CROSS APPLY AFLINK.PIAFDB.Data.InterpolateRange (ea.ID, N't', N'*', N'1h') i
WHERE eh.Path = N'\'
AND eh.Name = N'Digestion'
OPTION (FORCE ORDER)


Thanks,
Kevin
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RJK Solutions
#2 Posted : Tuesday, November 16, 2010 8:10:40 PM
Rank: Administration

Groups: Administration

Joined: 6/20/2008
Posts: 617
Location: Cheshire, United Kingdom.
Hi Kevin,

Is PI OLEDB Enterprise running on your AF server?
If so, then try changing

Code:

AFLINK.PIAFDB.Data.InterpolateRange (ea.ID, N't', N'*', N'1h')


to

Code:

PIAFDB.Data.InterpolateRange (ea.ID, N't', N'*', N'1h')


I believe there is a bug in calling a remote TVF (Table-Valued Function) using the four part naming scheme (aka fully qualified) in SQL Server 2005 & 2008.
Principal Consultant
Real-Time Data Management @ Wipro Technologies
blitzclipse
#3 Posted : Tuesday, November 23, 2010 8:28:15 PM
Rank: Member
Groups: Member

Joined: 1/15/2010
Posts: 13
Location: us
Rhys:

I tired what you suggested, and I still got an error; however, I did get it to work by simply creating a view with sql commander and hitting that view.



Now, I have another issue:
When I run my stored procedure from sql mangement studio, it works great; however, when I set it up as a job with sql server agent, it fails. I get the folowing error:

Access to the remote server is denied because the current security context is not trusted. [SQLSTATE 42000] (Error 15274). The step failed.


Any help would be greatly appreciated.

Thanks,
Kevin
blitzclipse
#4 Posted : Tuesday, November 23, 2010 8:44:58 PM
Rank: Member
Groups: Member

Joined: 1/15/2010
Posts: 13
Location: us
I got it to work by doing the following:


1. I had to go to the af server link and choose connection will be made using the current login’s security context.
2. Go to start/all programs/configuration tolls/sql server configuration manager to set sql server and sql server agent to run as a domain account.
3. I could not specify who to run the job as or it would fail.
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