Data Access :: Setting Up Oracle Linked Server

Sep 15, 2011

I have a requirement to set up an Oracle linked server, Ive never done this before and in fact never touched Oracle so I dont really know what I am doing.

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Setting Up Oracle Linked Server : Need Help : Sql2005 Running On XP Linking In Oracle 10.2

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Is there any step by step help sites for setting up SQL 2005 linked (oracle 10) server?

I find MSDN articles but they referance winNT and 2000, I'm not getting very far and I'm not a DBA but need to get this working asap.

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Setting Up Linked Servers With SQL Server And Oracle

Jul 2, 2001

Does anyone know where I can get some good examples of how to set up a linked
server to an Oracle data source in SQL 2000? I can't seem to get a link
set up to my Oracle database. In particular I am wondering how the communication works between OLEDB to the Oracle Instance and how to trouble shoot issues (for example, would is the Oracle Listener what OLEDB is talking to?) Thanks!!

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what are the next steps that i need to follow on my sqlserver in order to access the oracle tables ?

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When I tried to import system.data.oracleclient, it was not available. Do I need to install anything for being able to use it ?
Thanks a lot.

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Problem While Fetching Data From Oracle Linked Server

Mar 5, 2007

Hi,

I created a linked server as follows:

EXEC sp_addlinkedserver 'OracleLinkedServer', 'Oracle', 'MSDAORA', 'fcstage'

EXEC sp_addlinkedsrvlogin 'OracleLinkedServer', false, 'SA', 'fc_stage', 'password'

Now I try firing a simple select statement

SELECT FINANCIAL_TRX_INFO_ID FROM

[OracleLinkedServer]..[FC_STAGE].[WFS_FINANCIAL_TRX_INFO]

WHERE SFS_BUSINESS_SEGMENT IS NOT NULL

But I get the following error:

OLE DB provider "MSDAORA" for linked server "OracleLinkedServer" returned message "ORA-01426: numeric overflow

".

Msg 7330, Level 16, State 2, Line 1

Cannot fetch a row from OLE DB provider "MSDAORA" for linked server "OracleLinkedServer".

This seems to be a generic error statement. Can anyone tell me where am I going wrong.

Thanks.

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SQL Server Admin 2014 :: Error While Updating Data Using Oracle Linked Server

Sep 11, 2015

We have oracle linked server created on one of the sql server 2008 standard , we are fetching data from oracle and updating some records in sql server . Previously its working fine but we are suddenly facing below issue.

Below error occurred during process .

OLE DB provider "OraOLEDB.Oracle" for linked server "<linkedservername>" returned message "".
Msg 7346, Level 16, State 2, Line 1
Cannot get the data of the row from the OLE DB provider "OraOLEDB.Oracle" for linked server "<linked server name>".

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Importing Data From Oracle 10g To Sql Server 2005 Using Linked Server

Jul 30, 2007

Hi,

I am using Windows 2003 server and Sqlserver 2005 by the use of Linked server , I made a connection to Oracle 10g after that I am importing records from Oracle to sqlserver 2005. When I made tnsnames.ora in sql machine , it worked fine but when i am using tnsnames file from oracle server then i fiired importing procedure it returns below maintain error :

OLE DB provider "MSDAORA" for linked server "BI_ORACLE_LS" returned message "Unspecified error".

OLE DB provider "MSDAORA" for linked server "BI_ORACLE_LS" returned message "Oracle error occurred, but error message could not be retrieved from Oracle.".

Msg 7311, Level 16, State 2, Line 1

Cannot obtain the schema rowset "DBSCHEMA_TABLES" for OLE DB provider "MSDAORA" for linked server "BI_ORACLE_LS". The provider supports the interface, but returns a failure code when it is used.


Please let me know.

Thanks

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Cannot Initialize Data Source Object Of OLE DB Provider When Reset Linked Server To Oracle

Aug 19, 2015

I wanna to create a linked server which connect to oracle.  Here are my steps:

1.Install Oracel drivers Oracle Data Access Components.

2.Configure the Oracle Ole DB provider to run inside the SQL Server process and configure it to accept parameters. exec

master.dbo.sp_MSset_oledb_prop
'ORAOLEDB.Oracle',
N'AllowInProcess', 1
exec master.dbo.sp_MSset_oledb_prop
'ORAOLEDB.Oracle',
N'DynamicParameters', 1 

3.Create linked server with scripts:
exec sp_addlinkedserver N'MyOracle1', 'Oracle', 'ORAOLEDB.Oracle', N'//10.154.14.235', N'FetchSize=2000', ''
exec sp_addlinkedsrvlogin @rmtsrvname='MyOracle', @useself=N'FALSE', @rmtuser=N'root', @rmtpassword='Sqlexp!23'    
4. After create successful and testing the connection ,I got the error below.(My windows firewall is turn off)

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

Cannot initialize the data source object of OLE DB provider "ORAOLEDB.Oracle" for linked server "MyOracle".OLE DB provider "ORAOLEDB.Oracle" for linked server "MyOracle" returned message "ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA". (Microsoft SQL Server, Error: 7303)

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Trouble With: Linked Server To Oracle Using OraOLEDB.ORacle Provider

Jan 11, 2007

Hi--

 

I am running SQL Server 2005 on Win2k3:

Microsoft SQL Server Management Studio      9.00.2047.00
Microsoft Analysis Services Client Tools      2005.090.2047.00
Microsoft Data Access Components (MDAC)      2000.086.1830.00 (srv03_sp1_rtm.050324-1447)
Microsoft MSXML      2.6 3.0 4.0 6.0
Microsoft Internet Explorer      6.0.3790.1830
Microsoft .NET Framework      2.0.50727.42
Operating System      5.2.3790


I have the OraOLEDB.Oracle provider installed to the (C:oraclexe) directory.

I am having problems querying from linked oracle server.  When i setup oracle as a linked server and purposely enter an incorrect password the query i run tells me i have an incorrect password.   So it at least knows that.  when i set the correct password and run a query I get this error:

(i replaced the real server name with "someServer".)

Msg 7399, Level 16, State 1, Line 1

The OLE DB provider "OraOLEDB.Oracle" for linked server "SomeServer" reported an error. The provider did not give any information about the error.

Msg 7303, Level 16, State 1, Line 1

Cannot initialize the data source object of OLE DB provider "OraOLEDB.Oracle" for linked server "SomeServer".

 

This is how I set up my Linked server:

Provider: "Oracle Provider for OLE DB"

Product Name: SomeServer

Data Source: SomeServer

Provider String:  "Provider=OraOLEDB.Oracle;Data Source=SomeServer;User Id=MyLogin;Password=MyPassword"

 

 

The query I run is:

Select * from [Someserver].[schema or database]..[tbl_name]

 

Any help???  What am i missing?

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Linked Server Data Access Problem

Oct 8, 2007

Hi,

Here is the problem:

I have a server that is linked to two other servers. The server I am linking has SQL Epress installed, whereas the servers I am linking to (and getting the data from) are enterprise versions of SQL. I used the following code to link both the servers (changing the server name and the datasrc field) and both worked fine.




Code Block
EXEC sp_addlinkedserver

@ Server='SALEEN',
@ srvproduct = 'SQL OLEDB Provider',
@ provider = 'MSDASQL',
@ datasrc = 'Debtsolv_Test'
GO

EXEC sp_addserverlogin 'SALEEN', 'false', 'NULL', 'sa', '**********'




One of the links is fine and I have no error messages when trying to access the data, but the second link throws this error when I attempt to get any data from the linked server:




Code Block
OLE DB provider "MSDASQL" for linked server "SALEEN" returned message "[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified".
Msg 7303, Level 16, State 1, Line 3
Cannot initialize the data source object of OLE DB provider for "MSDASQL" for linked server "SALEEN".


I am pretty new to SQL and am totally stumped! If any one has any ideas I would be greatful.

Thanks



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Jan 23, 2008

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Linked Server ( Not Able To Access Any Tables Under LINKED SERVER From My DESKTOP Enterprise Manager

Mar 25, 2002

Hi ,
On my Desktop i registered Production Server in Enterprise Manager
on that Server if i go to SecurityLinked Servers
There is another Server is already mapped, when i am trying to see the Tables under that one of the
Linked Server i am getting the Error message saying that
"Error 17 SQL Server does not exist or access denied"

if i went to Production Server location and if i try to see the tables i am able to see properly, no problems
why i am not able to see from my Desk top
i am using the sa user while mapping the Production Server on my DESKTOP using (ENTERPRISE MANAGER)

And i check the Client Network Utility in the Alias using Named Pipe only, i changed to TCP/IP still same problem
What might the Problem how can i see the Tables in Linked Server from my DESKTOP

Thanks

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Apr 19, 2006

In Sql server if i have a varchar field of length 12, if i enter 12 chinese characters, it fails. In Oracle there is a setting nls_length_semantics.If you put char in nls_length_semantics , it takes 12 characters irrespective of english(one byte) or chinese(doublr byte).

Is there any similiar setting for Sql server?

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Setting Up Linked Server To IBM AS400

Mar 18, 2004

I am trying to set up a linked server in MSSQL to an IBM AS400 using the IBM AS400 OLE DB Provider. The New Linked Server dialog box asks for properties Product Name and Data Source. I would like to know from someone who has successfully set up a linked server to an AS400 what the specific syntax in the properties needs to be. I have reviewed the OLB section on sp_addlinkedserver, and while this is helpful and gives many specific examples, I need an example for an AS400. Thank you to anyone who can help!

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I'm trying to set up a user DSN for a MS Access database in Vista. In XP it's usually just a case of going to Admin Tools > Data Sources but I only get the option of SQL Server and SQL Native Client with Vista.
I'm pretty sure I found a way of doing it a while ago by opening another version of Data Sources from the command prompt but can't for the life of me remember what it was.

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Setting Up SQL 2005 Linked Server Connecting To A DB2 Database

Oct 21, 2006

Hi,

I have setup a linked server to a DB2 database using "Microsoft OLE DB  Provider for ODBC Drivers",

the connections works fine i am able to run select queries.

but the number of rows returned from the two following statements are different.

select * from linkedserver...tablename

select count(*) from linkedserver...tablename

e.g. The First statement returns  116 rows, whereas the second query returns count as 144....

I am a bit confused ?????

could anybody think of any possible reasons..

Cheers

ARAW012 

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Linked Server In NT To Oracle

Jul 15, 2002

Hi:

I configured SQL Server 7.0 by Linked Server to a Oracle db. What I found was I could select data from SQL Enterprise Manage but fail to insert any data through Query Analyst from SQL Server to Oracle. The platform for the SQL Server is NT 4.0 SP6.

Could you point out what I missed while inserting data from Query Analyst to Oracle?

Thank you very much.

Rick

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Jul 20, 2005

Hi,I have an Oracle (8.1) & a SQL Server 2000 database withProduction data. There are situations when I need data from both thedatabases. My first choice was to link Oracle to SQL and run DTSovernight. But this would have a 1 day latency not to mention the timeit would take.1. Has any one tried real time access via Linked server to Oracle?How good is the performance?2. The Oracle db is fairly big, so I'm kinda not in favor ofcopying the whole thing over into SQL overnight. Is there an easierway to just get only the changed records from Oracle?3. Is there a better solution to this?4. Lastly, if I use OPENROWSET or OPENQUERY, can I dynamicallychange the SQL that you pass it? e.g. can the query accept aparameter?Thanks in advanceSudhesh

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Jul 20, 2005

Hello,I have a linked server to oracle 7.1 from SQL 2000. when I try toexecute simple select statement which returns one row of data usingopenquery is not fetching the data. After 30 minutes SQL Queryanalyser is hanging. This is happening on the production server and itis working from last 6 months. I have tried by deleting and recreatingthe linked server, but no use. Please helpThanks,Regards,Pardhasaradhy

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Jul 20, 2005

Hello all,Having problems connecting to an Oracle 9i database from withinSQL/Server 2000 using the Security/Linked Servers feature.Server1 (SQL/Server)-----------Windows Server 2003, Standard editionMS SQL/Server 2000Oracle 9i Client kit (OLEDB & ODBC) & Enterprise management toolsMicrosoft ODBC for OracleOracle OLEDBMDAC 2.8 RTMServer2 (Oracle)-----------Windows 2000 - Advanced ServerOracle 9i database (v9.2.0.1.0)Two nodes clustered using Microsoft cluster manager. (Nodes areDATABASE01 & DATABASE02 - Cluster is WMCLUSTER)When I try to connect to the linked server in Enterprise Manager I getthe following error messages.Error 7399 OLE DB provider 'MSDAORA' reported an error. Authenticationfailed.OLE DB error trace [OLE/DB Provider 'MSDAORA'IDBInitialize::Initialize returned 0x80040e4d: Authenticationfailed.].From within Query analyzer I get a slightly different messagereporting that the username/password are incorrect.dbcc traceon(7399)select * from TURLIVE..SONICA.INV_LOCServer: Msg 7399, Level 16, State 1, Line 3OLE DB provider 'MSDAORA' reported an error. Authentication failed.[OLE/DB provider returned message: ORA-01017: invalidusername/password; logon denied]OLE DB error trace [OLE/DB Provider 'MSDAORA'IDBInitialize::Initialize returned 0x80040e4d: Authenticationfailed.].I know the username/password combination is correct and I can usethese from with Oracle enterprise Manager with sucess.TURLIVE is the name I've given the linked server, SONICA is the nameof the schema on the Oracle database and INV_LOC is a valid table.TURLIVE is also the name of the database instance on Server2.Steps taken so farInstall Oracle client tools (Enterprise Manager, Net manager etc) onServer1.Setup an entry in TNSNAMES.ORA to the cluster that has the Oracledatabase. e.g.TURLIVE =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = WMCLUSTER)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = TURLIVE)))This works fine, I can connect via Oracle Enterprise manager and I canTNSPING WMCLUSTER, DATABASE01 & DATABASE02.Configured an ODBC source to TURLIVE.On Server1 I've configured the linked server using the following SQL.sp_addlinkedserver 'TURLIVE', 'Oracle', 'MSDAORA', 'TURLIVE'sp_addlinkedsrvlogin 'TURLIVE', false, 'sa', 'sonica','******'(password blanked)I then rebooted Server1The properties of the new linked server are:Product name = OracleData Source = TURLIVEProvider String = blankI've modifed the registry on Server1 as instructed by a Microsoft KBarticle.HKEY_LOCAL_MACHINESOFTWAREMicrosoftMSDTCMTxOCI OracleXaLib = "oracleclient8.dll"OracleSqlLib = "orasql8.dll"OracleOciLib = "oci.dll"Still no luck. Can anyone please point out he bleeding obvious? :-)Thanks in advanceAs an aside, has anyone ever configured a linked server to an OracleRdb (Previously DEC Rdb running on OpenVMS and DEC UNIX) database?Are there any HOWTO guides for this type of connectivity?CheersDave.

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Oct 23, 2007



We're having some trouble connecting SQL Srvr2005 to Oracle (10g) in our 64-bit environment. We have Oracle's 32-bit Ole Db provider installed and have been able to use that in SSIS to connect and return some data running in 32-bit debug mode (as long as the query isn't long, complicated or using parameters =)

However, we have some hefty queries that we need to gather some data and want to put them in a stored proc on Oracle and call it through SSIS. We tried adding our Oracle DB as a linked server and are getting some errors. I've tried the following code replacing the provider with 'OraOLEDB.Oracle.1', 'OraOLEDB.Oracle' as well as 'MSDAORA':


EXEC sp_addlinkedserver

'ORA_TSTW', 'Oracle',

'OraOLEDB.Oracle.1', 'TSTW'



EXEC sp_addlinkedsrvlogin 'ORA_TSTW', false,

'user', 'lituser',

'pw'



select * from openquery(ORA_TSTW, 'select * from lituser.customer')


We keep getting the error for each of the providers we try. I've tried it in Management Studio as well as in an Exec SQL task (with debug set to 32-bit) to no avail.


Cannot create an instance of OLE DB provider "OraOLEDB.Oracle.1" for linked server "ORA_TSTW".


I've checked and the MSDAORA.dll is registered in both C:Program Files (x86)Common FilesSystemOle DB as well as C:Program FilesCommon FilesSystemOle DB.

If we can't where we can call an Oracle stored proc, we were thinking of just using a script task to connect to Oracle and retrieve the data we need, but I have a feeling performance this way would be degraded.

Anyone have thoughts/suggestions? TIA!

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