Help With Linked Servers
May 6, 2007
Hi Everyone,
I am developing a reporting database server that will use multiple data sources to construct its query (SQL Server 2005, Oracle 9i, and DB2). I successfully linked all 3 databases to my SQL Server 2005 and I am ready to create the report queries. I would like to know what is the best method to do this. Should I refer to the linked servers by four part naming or use a OPENQUERY query. When using a OPENQUERY, you cannot specify parameters to pass to the linked server which makes me question its performance. Can someone please suggest the best way to do this?
Thank you in advance
-Sam
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Aug 17, 2006
Is it possible to link to an SQL 2005 server db from a SQL 2000 server? Is there a driver for this?
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Apr 5, 2008
can anybody tell me about Linked Servers and their uses and how to add a linked server to my Sql Server 2005.
any help on this would be highly appreciated.
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Jun 10, 2004
Hello All,
I have been trying to Link two sql servers on two different machines over the Internet without any luck. Can someone point me to information about doing this with good examples?
Thanks
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Jan 22, 2002
I currently have a main SQL Server which had a column on the majority of the tables. This column also had a check contraint on it. I dropped the column and the constraint and I now get the following message when trying to query the tables through a linked server 'OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time.'.
Can anyone help
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May 10, 2001
Hi All,
I have successfully linked a server and had SQL queries running
OK for a few weeks, but today I get the following message....
"OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time."
(Server: Msg 7353, Level 16, State 1, Line 1)
I've dropped the link and recreated it but I still get the same error
message. Can anyone help???
Thanks
David.
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Jun 25, 2001
Hi,
I'm using SQL Server 7.0 SP1.
I have a DTS package that requires me to link 2 servers
and query both in order to get my set of records that I
want to Transform. My query runs fine in QA. I copy and
paste it into the SQL Query window of the transformation.
I click Preview and all that happens is a quick flicker of
the DTS window. When I go to Transformations, there are
no source columns.
Here is a copy of my code that I'm trying to use:
-------------------------------------------------------
declare@start_dteas datetime,
@end_dteas datetime
SELECT@start_dte = date_data_range_start_dte,
@END_DTE = date_data_range_END_dte
FROMSIDDEV.SID_DEVELOPMENT.DBO.T901_RUN
WHERERUN_ID = (selectmax(run_id)
from
SIDDEV.SID_DEVELOPMENT.DBO.t901_run
whererun_type_cd = 'M')
SELECTRUN_ID
INTO#RUNS
FROMCRMDEV02.MDCORE.DBO.T901_RUN
WHEREDATE_DATA_RANGE_START_DTE >= @START_DTE
ANDDATE_DATA_RANGE_END_DTE <= @END_DTE
SELECTT70.*
FROM
CRMDEV02.MDCORE.DBO.T70_MD_UNIVERSE_RELATIONSHIP_M A
NGT AS T70 JOIN #RUNS
ONT70.RUN_ID = #RUNS.RUN_ID
DROP TABLE #RUNS
------------------------------------------------------
Is there an issue with Linked Servers and DTS?
Any help would be greatly appreciated.
Thanks in advance,
Darrin
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Aug 7, 2001
FOLKS
I GET THE FOLLOWING ERROR WHEN I RUN A SELECT FROM THE LINKED SERVER
THE LINKSERVER EXISTS AND THERE IS A RECORD IN SYSSERVERS TOO.
Could not initialize data source object of OLE DB provider 'Microsoft.Jet.OLEDB.4.0'
I AM NOT SURE WHERE TO GO FROM HERE.
REGARDS
GIRISH
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Aug 10, 2001
Hi Gurus,
I am looking for literature to find out Pros and Cons of Using DTS Verses
Linked Servers in SQL 7.0.
My requirement can be done by either DTS or Linked servers. But I would like to know more about resorce utilisation of these tecniques before making a decission.
Can somebody suggest where to look for.
Thanks
sekhar
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Sep 18, 2001
When I create linked server using integrated security and <they will be impersonated> option I get this:
Server: Msg 18456, Level 14, State 1, Line 1 Login failed for user ''
MS Technet says that SQL Server 7 doesn't allow double hops and to use mappings to standard security login to work around. @#%%~~@@#@#&^%@#
Impersonating to version 6.5 works fine.
Is there any way to link servers using ONLY integrated security?
Any help would be much appreciated.
Thanks
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Jul 18, 2000
I have setup a linked Informix server in SQL7.0 and I am trying to create a
simple View with the following SQL statement
SELECT doc_code
FROM FOURSITE.foursite.informix.watdoc
WHERE (order_no = [PV01963B ])
I am getting the following error:
---------------------------
SQL Server Enterprise Manager
---------------------------
[Microsoft][ODBC SQL Server Driver][SQL Server]Invalid use of schema and/or
catalog for OLE DB provider 'MSDASQL'. A four-part name was supplied, but
the provider does not expose the necessary interfaces to use a catalog
and/or schema.
---------------------------
OK Help
---------------------------
Can any one tell me how to correct this problem?
Thanks
Peter
pczurak@bigfoot.com
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Apr 17, 2000
Is it possible to add a 6.5 database as a linked server to a 7.0 database and query from it ?
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Nov 3, 2000
Hi.
I'm working with SQL Server 7.0 and I've been reading about the linked server option. My question is, if it's possible to link a server with a SQLBase database 7.01.
I have download some drivers to my computer, the odbc driver for sqlbase and the sqlbase ole db driver as well, but when I try to add a new linked server in the enterprise, in the provider name option I can not see any provider name addressing to Centura or Sql base driver.
Has anybody an idea how to make this connection then? or the right way for doing it??
Thanks for any help can be offered.
Regards, Elvia.
:)
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Feb 10, 2000
I have two 7.0 servers and I want to run a distributed query.
I did sp_addlinkedserver to link server B to server A
and I did sp_addlinkedsrvlogin for a specific login.
After adding login when I try to access a table on server B it
says login failed
All the logins are NT authenticated (in both the servers, So
both servers have same logins.)
but it is not working.
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Sep 1, 2000
Hi all
I try to configure Linked Servers from the query analyze , and have some troubles.
My steps are :
1. from the enterprise mennenger , add 2 new servers : srv1 , srv2 (both SQL7)
2. from the query analyzer of srv1.master: "sp_addlinkedserver 'srv2'"
3. from the query analyzer of srv1.master:
"sp_addlinkedsrvlogin 'srv2',false,null,'sa','myPass'"
4. select * from srv2.pubs.srv2Table
5. I get the next error :"error 6 : Specified SQL srever not found."
What do I do wrong ?
Eyal
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Apr 19, 2000
Anyone out there use linked servers? I just tried this SQL7 feature and am very impressed. Are there any pitfalls to watch out for? Comments?
Thanks in advance.
Steve
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Feb 14, 2002
I have created link servers a few time within SQL2000 and pulled data from Oracle. How would an Oracle Server or Application pull / See from SQL?
Anyone have any experience?
Thanks,
David
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May 11, 2002
How to determine by means of T-SQL
if a linked server is available(for processing with its tables)?
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Jun 26, 2002
This is my problem I have a Server A and Server B. There is a master table in Table A. I link Server A and Server B. When I look in Under Linked Server tables of B I can only C tables in Server A not the Server B 's Tables. Dpn't know what is happening. Could SOmebody help
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Nov 1, 2004
We are creating a newServer grabbing data from an extrnal data source.
We need to perform regular audits to verify the record counts (for now) are the same.
We have 2 physically separate SQL servers 1 with old 1 with new.
I have created a linked server but when i do a query on the linked server the performace is pathetic (2mins 12 secs) to do a simple count.
Is there a better way, or can improv the perf?
Thanks
Greg C
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Jan 5, 2006
I have two servers and they are linked servers. When I query a table on ON Box2 from Box1
The distributed query works fine but when I tried the oppisite it says 'SQL Server does not exist or access denied.'
What could be the reason.
Thanks.
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Feb 27, 2006
Recently, I had Microsoft review why our SQL Db was unexpectedly terminating. They pointed to our Oracle Linked servers. They recommended that we try to uncheck the enable allow in process option on the ODBC driver. We are currently using the Microsoft OLE Db provider for our Oracle connnections as we were unable to get the Oracle ones to work with a linked server. When we unchecked this allow in process option near the end of the day our website began getting out memory errors from ODBC. It appeared to have been because of this change. Does anyone have any insight as to why changing this option could have caused this?
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Sep 29, 2006
Hello,
Is there any limit to the number of linked servers i can add via EM?. where can i find more info on adding/configuring linked servers in MSSQL2k and the limitations/drawbacks if any?
Thanks in advance..
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Apr 12, 2007
Hello (again!)
We have a new 2005 server, and I am trying to link our old 2000 server so I can use the old databases in new server.
This is what I done:
In 2005:
EXEC sp_addlinkedserver oldServer
--completed fine
then:
EXEC sp_addlinkedsrvlogin oldServer, 'false', NULL, 'Administrator', password
--completed fine
But whenI run the query I get the error:
OLE DB provider "SQLNCLI" for linked server "oldServer" returned message "Communication link failure".
Msg 10054, Level 16, State 1, Line 0
TCP Provider: An existing connection was forcibly closed by the remote host.
Msg 18456, Level 14, State 1, Line 0
Login failed for user 'Administrator'.
Any ideas????
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Aug 28, 2007
I have to link servers using sql server 2000 standard edition....
for anyone who has done this..... upon linking the servers using the other options radio button choice.... is it suppose to show all the databases for that server under the drop down....
its only showing tables and views... which i get an error 7339 or error 17:
can anyone assist...or lead me in the right direction.....
thanks,
jonathan
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Sep 12, 2007
Hi,
Disclaimer: I am not a DBA so my attempts may not make sense. :)
I have a win 2003 server running sql server 2005. I am trying to create a 'linked server' with an oracle 8i database at a remote site. I have tried using the 'add linked server' option from sql server enterprise manager and I have also tried to create it using the sp_addlinkedserver command. i tried using a dsn as the datasource and I have also tried using a dsnless connection using a TNS entry as the provider string. The Oracle client is on the box as can be confirmed both by the dropdown in the 'add linked server' dialog in sql server enterprise manager and also by going into the oracle enterprise manager and actually sending oracle data. I don't really have a preference on how to create the 'Linked server', I just need to get it to work.
AAA = server
BBB = DSN
XXX = UID
YYY = pwd
DSNLess Attempt:
EXEC master.dbo.sp_addlinkedserver @server = N'TEST1', @srvproduct=N'OraOLEDB.Oracle', @provider=N'OraOLEDB.Oracle', @provstr=N'SERVER=(DESCRIPTION=(ADDRESS_LIST=(ADDR ESS=(PROTOCOL=TCP)(HOST=AAA)(PORT=1556))) (CONNECT_DATA=(SERVICE_NAME=LPPCPEDB)));uid=XXX;pw d=YYY;'
DSN Attempt:
EXEC master.dbo.sp_addlinkedserver @server = N'TEST2', @srvproduct=N'Oracle', @provider=N'OraOLEDB.Oracle', @datasrc=BBB'
Thanks in Advance
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Apr 7, 2004
I have a linked server connection on a SQL 2k server connected to a Sybase ASE 12.5 server via Sybase OLE DB connection. To this point everything has been working great for months. Now we're encountering a problem where new tables created on the Sybase db won't show up in the linked server connection. I've checked permissions and the object owners and everything is exactly the same as the pre-existing tables except the table's new.
Anyone have any ideas wht's up???
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Nov 14, 2007
Trying to set this up
http://www.databasejournal.com/features/mssql/article.php/3691721
When i select this be made using this security context
and use local account login it keeps erroring.
TITLE: Microsoft SQL Server Management Studio
------------------------------
"The linked server has been updated but failed a connection test. Do you want to edit the linked server properties?"
------------------------------
ADDITIONAL INFORMATION:
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
------------------------------
TCP Provider: An existing connection was forcibly closed by the remote host.
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
OLE DB provider "SQLNCLI" for linked server "10.50.40.157" returned message "Communication link failure". (Microsoft SQL Server, Error: 10054)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.3042&EvtSrc=MSSQLServer&EvtID=10054&LinkId=20476
------------------------------
BUTTONS:
&Yes
&No
------------------------------
User exists on both SERVERS the linked one and the one im setting u the linked server with.
Dont understand.
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Jan 18, 2008
Okay, so i have two sql servers on the same network. i want to be able to have them linked. so i went into management studio, and did the New Linked Server Wizard.
i typed in the box "Server2" (name of the server i want to link to) and selected SQL CLIENT bullet
now the sa logins are the same, and so are the windows logins for the server, so security shouldnt really be an issue.
when i run: EXEC sp_tables_ex Server2
i get the following error:
OLE DB provider "SQLNCLI" for linked server "Server2" returned message "Invalid authorization specification".
Msg 7399, Level 16, State 1, Procedure sp_tables_ex, Line 41
The OLE DB provider "SQLNCLI" for linked server "Server2" reported an error. Authentication failed.
Msg 7303, Level 16, State 1, Procedure sp_tables_ex, Line 41
Cannot initialize the data source object of OLE DB provider "SQLNCLI" for linked server "Server2".
is this a username/password issue? the windows administrator accounts are the same, and so are the sa logins, is there something i can do to get past this?
small update i tried:
USE master;
GO
EXEC sp_addlinkedserver
'Server2',
N'SQL Server'
GO
BEGIN TRY
EXEC sp_testlinkedserver N'Server2';
END TRY
BEGIN CATCH
PRINT 'Linked Server not available';
RETURN;
END CATCH
ang got:
OLE DB provider "SQLNCLI" for linked server "Server2" returned message "Login timeout expired".
OLE DB provider "SQLNCLI" for linked server "Server2" returned message "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.".
Linked Server not available
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Apr 8, 2008
Hello,
I need help creating a linked server between two SQL Server 2005 databases.
What I need to be able to do is query Table A from Database1 on Server1 from Database1 on Server2. Do I create a DSN? Would I create it on Server1 or Server2? I've looked at examples online and the linked server template, but I'm very new at this.
Many thanks,
Mark
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Jun 12, 2006
I am developing a WM5 program (C#.NET) using SQL Server Mobile, using RDA to pull and push data from/to SQL2005.
The question/issue is this: Does RDA work with linked servers, more specifically, if the RDA table is an Oracle table accessed through a linked server? I have a linked server defined in SQL2005, using the .NET Oracle provider (MSDAORA) linked to Oracle 10g. When I try to perform an RDA PULL operation from Windows Mobile 5 (Smartphone emulator) I get the following error:
The query cannot be tracked. There might not be a primary key, or the query might involve multiple tables. [ Query string = SELECT * FROM DATABASE_NAME..SCHEMA_NAME.TABLE_NAME ]?
I have used at least 3 different test tables in Oracle, trying different options. The error message above implies that the table may not have a primary key but it does (constraint and index) and I have tried a few options with this. The message also implies that multiple tables may be involved but this is not the case either. I have tried variations on the select statement including specifying the columns. I tried building the CREATE TABLE statements with the PK using SQLServer to generate the SQL DDL to see if SQLServer might build the table, constraint, index with options the way it wants to see them same result.
I can run most any queries (select, insert, etc.) from SQLServer using the linked server and the queries work. The only problems involve RDA to the linked server. I tried turning tracking off on RDA and was able to pull the entire table from the linked server. However, RDA requires that you can only push a tracked table (change tracking on). I tried to push a non-tracked table and it fails.
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Mar 19, 2008
Hello,
I have two databases on the same server (SQL Server 2005). I need to query data from table1 in database1 in database2. Do I need a linked server. I've had a look at the "Add Linked Server Simple" template, but I don't know what criteria to enter in the template?!
For simplicity sake, say my database1 is called DB1 with the table TBL1. Where does this go below and what else do I need?
-- =====================================
-- Add Linked Server Simplet template
-- =====================================
-- Create linked server reference to Database Engine instance on same machine
EXEC master.dbo.sp_addlinkedserver @server = N'<server_name,sysname,(local)><instance_name,sysname,SQLEXPRESS>', @srvproduct=N'SQL Server'
GO
-- Use current login's security context for the link
EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname = N'<server_name,sysname,(local)><instance_name,sysname,SQLEXPRESS>', @locallogin = NULL , @useself = N'True'
GO
-- Run a test query
SELECT * FROM [<server_name,sysname,(local)><instance_name,sysname,SQLEXPRESS>].<database_name,sysname,pubs>.<schema_name,sysname,dbo>.<table_name,sysname,authors>
GO
Thank you,
Mark
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May 8, 2008
Hi,
Can some one let me know how to pull the data from a remote server using a SQL script. The solution i can think of is to create a liked server using T-SQL, pull the data (select * into from) and then drop the linked server.
But for creating a linked server, how should i check whether the user(login) has permissions or not (what permissions are required?). Though we create the linked server sucessfully, we should have read access (select) for the Object on the remote server. How to check this?
Regards,
-Aazad.
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