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Call DB2 stored procedure using Linked Server?


Call DB2 stored procedure using Linked Server?

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speja01
speja01
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Hi Everyone,

Is it possible to call a DB2 stored procedure using a linked server? I've read a bunch of conflicting information out on the internet. Various posts have claimed it is not supported but then I came across a couple of posts which suggest it is possible. If it is possible..please provide me with a link to the information. Any help is appreciated!

Thanks
RBarryYoung
RBarryYoung
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Have you tried using the EXEC..AT feature?

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc.
"Performance is our middle name."
Jeff Moden
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I know it's an old post but the following should help a lot.
http://www.mcpressonline.com/index2.php?option=com_content&do_pdf=1&id=1541

The keys to the magic appear in the following...
--
-- Create Linked Server using ODBC DSN "AS400"
--
sp_addlinkedserver
@server=N'DB2400',
@srvproduct=N'DB2 UDB for iSeries',
@provider=N'MSDASQL',
@datasrc=N'AS400',
@provstr='CMT=0;SYSTEM=as400.mycompany.com',
@catalog='S104X824'
go
--
-- Define the credentials that will be used to
-- access objects hosted by the Linked Server
--
sp_addlinkedsrvlogin @rmtsrvname=N'DB2400',
@useself='false',
@rmtuser=N'MyUser',
@rmtpassword='MyPassword'
go
--
-- RPC option is required for doing EXEC AT
--
EXEC sp_serveroption 'DB2400', 'rpc out', true
go


The biggest key here is that you must use the MSDASQL driver and you must enable "rpc out".

The article at the link also gives an example call to return a result set as follows... Obviously, the temp table must already exist but that's also covered in the article.

--
-- A DB2 stored procedure can be executed
--
Set @OrderID = 10249
Insert Into #tmpOrderHdr
Exec ('Call DATALIB.GetOrders (?)', @OrderID) AT DB2400




To be clear, I've not tried any of this, yet. Our infrastructure team is in the process of installing the correct MSDASQL driver.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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RBarryYoung
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Sweet. Really nice find, Jeff. This goes in my Favorites list... :-)

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc.
"Performance is our middle name."
Newbie2LinkedServer
Newbie2LinkedServer
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I am newbie to linked server concept, I am looking for help to resolve my issue. Please suggest.

My requirement:
In DB2 data base I have a stored procedure and from SQL 2008 R2 using Linked server I need to be able to execute stored procedure. I am getting the error while I am trying to execute.

Created SP as below with db2admin user:
CREATE OR REPLACE PROCEDURE SP_MyStoredProcedure
LANGUAGE SQL
SPECIFIC SP_MyStoredProcedure
-- EXTERNAL ACTION
BEGIN
.......
END


select * from [MyDb2LinkedServer].[db2DB].[db2admin].TLS_MyDb2Table and I get the results, which means my linked server DB2 connectivity is fine.

Then while executing as below SP got the error

exec [MyDb2LinkedServer].[db2DB].[db2admin].SP_MyStoredProcedure

Error:
OLE DB provider "DB2OLEDB" for linked server "MyDb2LinkedServer" returned message "Routine "*rocedure"?SQL150518145704050?...erver"."SP_MyStoredProcedure"?*?4" (specific name "") is implemented with code in library or path "", function "" which cannot be accessed. Reason code: "". SQLSTATE: 42724, SQLCODE: -444".
Msg 7212, Level 17, State 1, Line 1
Could not execute procedure 'SP_MyStoredProcedure' on remote server 'MyDb2LinkedServer'.


Here in the error
specific name ""
library or path ""
function ""
Reason code: ""

all are empty, no much information is available.

Need help on this and how this can be resolved? Any help is appreciated.

Note:
"rpc", "rpc out" both options are true.
Go


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