Linked Server And Query Performance
May 14, 2001
Hi,
I am now facing a problem related to the linked server. I created the connection between server A and B as linked servers. When I execute the following SQL statement on server A,
select * from B.database1.dbo.tableA where id ='12345'
I can get the results within couple of seconds. But the similar query would take several minutes if I switch the server name in the query from B to A and
run it on server B! The tables on server A and B actually have the same sizes and the same indexes.
Do you have any clues and suggestions on this issue?
Thanks in advance.
Keith
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Jul 20, 2005
Greetings,I have 3 servers all running SQL Server 2000 - 8.00.818. Lets callthem parent, child1, and child 2.On parent, I create a view called item as follows:CREATE view Item asselect * from child1.dbchild1.dbo.Item union allselect * from child2.DBChild2.dbo.ItemOn child1 and child2, I have a table "item" with a column named "id"datatype uniqueidentifier (and many other columns). There is anon-clustered index created over column "id".When I connect to the parent server and select from the viewSelect id, col1, col2, …. From item where id =‘280A33E0-5B61-4194-B242-0E184C46BB59'The query is distributed to the children "correctly" (meaning itexecutes entirely (including the where clause) on the children serverand one row is returned to the parent).However, when I select based on a list of idsSelect id, col1, col2, …. From item where id in(‘280A33E0-5B61-4194-B242-0E184C46BB59',‘376FA839-B48A-4599-BC67-25C6820FE105')the plan shows that the entire contents of both children item tables(millions of rows each) are pulled from the children to the parent,and THEN the where criteria is applied.Oddly enough, if I put the list of id's I want into a temp tableselect * from #bv1id------------------------------------280A33E0-5B61-4194-B242-0E184C46BB59376FA839-B48A-4599-BC67-25C6820FE105and thenSelect id, col1, col2, …. From item where id in (select * from #bv1)the query executes with the where criteria applied on the childrendatabases saving millions of rows being copied back to the parentserver.So, I have a hack that works (using the temp table) for this case, butI really don't understand the root cause. After reading online books,in a way I am confused why ANY of the processing is done on thechildren servers. I quote:================================================Remote Query ExecutionSQL Server attempts to delegate as much of the evaluation of adistributed query to the SQL Command Provider as possible. An SQLquery that accesses only the remote tables stored in the provider'sdata source is extracted from the original distributed query andexecuted against the provider. This reduces the number of rowsreturned from the provider and allows the provider to use its indexesin evaluating the query.Considerations that affect how much of the original distributed querygets delegated to the SQL Command Provider include:•The dialect level supported by the SQL Command ProviderSQL Server delegates operations only if they are supported by thespecific dialect level. The dialect levels from highest to lowest are:SQL Server, SQL-92 Entry level, ODBC core, and Jet. The higher thedialect level, the more operations SQL Server can delegate to theprovider.Note The SQL Server dialect level is used when the providercorresponds to a SQL Server linked server.Each dialect level is a superset of the lower levels. Therefore, if anoperation is delegated to a particular level, then Queries involvingthe following are never delegated to a provider and are always it isalso delegated to all higher levels.evaluated locally:•bit•uniqueidentifier================================================This suggests to me that any query having where criteria applied to adatatype uniqueidentifier will have the where criteria applied AFTERdata is returned from the linked server.Any ideas on the root problem, and a better solution to get the queryand all the where criteria applied on the remoted linked server?Thanks,Bernie
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Jan 10, 2006
Using a query through a linked server is giving tremendously reduced performance.
Is part of the problem linking from a SQL 2000 to a SQL 7.0 database?
Are there any other tips out there?
Thanks.
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Jun 6, 2002
Anyone have any suggestion on increasing the performance going over a linked server? IS this connection persistent? Or does it establish a connection with each reference? Any other Providers for the connection other than Microsofts OLE DB Provider for Oracle? I imagine that building index's on the referenced oracle tables would help?
Any help, input or suggestions would help.
David
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Apr 16, 2007
I am currently querying two databases - One in SQL Server and one Oracle, to find records which are in one but not the other (essentially a reconcilliation) this is working fine in MS Access, using 2 passthrough queries to return the results of the 2 databases, then another query to find the data in one but not the other.
I decided to try the linked server approach as I thought this would give me enhanced performance - but strangely enough when I query the oracle database from MS Access the query takes about 22 seconds - whereas when I query the linked server from SQL Server the same query takes about 55 seconds.
The only difernce I can see is the passthrough query in MS Access is connecting using ODBC, an the linked server is connecting using Microsoft OLE DB Provider for Oracle.
Any ideas would be appreciated
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Jan 6, 2004
Hello,
I have a SQL Server instance on my local computer and an Oracle
Database on a remote server. I want to run queries from tables
within both databases and am using linked servers to accomplish
this.
I configure my linked server in SQL Server using the Microsoft
OLE DB Provider for Oracle and can run queries using sql server
tables and oracle tables. However, even the simplest queries
take more than 10 minutes to run.
I have the Oracle 9 Client Installed and MDAC 2.7. I configured
my registry settings to match oracle 9's settings.
However nothing i do improves the performance of the queries
through the Microsoft OLEDB Provider for Oracle.
When I use MS Access, or use an ASP page with the following
string:
Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open "dsn=Oberon;uid=mfs;pwd=mfs;"
I implement the ODBC driver that I configured in my system DSN
and both run the same queries very fast. The data comes back
without a problem.
So i believe I have narrowed down my problem to the OLEDB
Provider. However, SQL Server does not give me a choice to use
the ORACLE native ODBC Provider.
So then I tried using Pass-Through Queries and this worked alot
faster in SQL Server...I am completely confused as to whats
going on.
Linked Server Query that takes over 10 minutes:
SELECT * FROM OBERON..LOGS.DATA_PHOTO ldp where Machine=301 AND C3='I051097';
Pass-Through Query that works faster:
select * from Openquery(OBERON, 'SELECT * FROM LOGS.DATA_PHOTO ldp where MACHINE=301 AND C3=''I051097''')
From researching pass through queries, my understanding is that
it actually uses ODBC to give the whole query to the remote
database where the query is then run and the results are passed
back as a table, thats why you say select * from (query)...however if my understanding is correct, then you cant combine tables in different databases very easily. And will it work with .asp and .aspx pages?
Anybody have any insight as to whats going on?
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Jul 8, 2004
Hi,
I am interested if anyone else has come across performance problems with the SQL Server linked servers to SQL Server. I suspect that the OLE DB Provider that I am using perhaps has some performance issues when passed parameters.
I have set the dynamic paramters option on, and use collation compatible.
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Jul 20, 2005
I changed from Access97 to AccessXP and I have immense performanceproblems.Details:- Access XP MDB with Jet 4.0 ( no ADP-Project )- Linked Tables to SQL-Server 2000 over ODBCI used the SQL Profile to watch the T-SQL-Command which Access ( whocreates the commands?) creates and noticed:1) some Jet-SQL commands with JOINS and Where-Statements aretranslated very well, using sp_prepexe and sp_execute, including thesimilar SQL-Statement as in JET.2) other Jet-SQL commands with JOINS and Where-Statements aretranslated very bad, because the Join wasn´t sent as a join, Accesscollects the data of the individual tables seperately.Access sends much to much data over the network, it is a disaster!3) in Access97 the same command was interpreted wellCould it be possible the Access uses a wrong protocol-stack, perhapsJet to OLEDB, OLEDB to ODBC, ODBC to SQL-Server orJet to ODBC, ODBC to OLEDB and OLEDB to SQL-Server instead ofJet to ODBC and ODBC direct to SQL-ServerDoes anyone knows anything about:- Command-Interpreter of JetODBC, Parameters, how to influence thecommand-interpreter- Protocol-Stack of a Jet4.0 / ODBC / SQL-Server applicationThanks , Andreas
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May 8, 2001
Greetings all,
I have successfully been able to use a SELECT query to see tables on a remote (Linked) server. Now, I want to be able to join those records with a WHERE clause to the same tables I have on my local database. The idea here is to be able to see current data on my local database(which is not current data), which resides in the remote database(which is current data). Here is what I have so far:
SELECT top 10 * from LinkServer.MC_Card.webuser.POS_TX
But, I'm not sure how to SELECT from two tables. Would I do a SELECT from the local database WHERE all records = records on the remote database?
Not sure how to do this. Is this what would be considered a Distributed Query? And how would I make this work with joins like the existing joins I have to the tables in my local database?
This is new territory for me. Sorry if this is such a newbie question.
Thanks,
Bruce
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Nov 7, 2006
I'm using MS SQL Server Express and I've added a linked server. (I created the linked server by right mouse clicking on Server Objects, selecting SQL and entering the SQL2 as the name.) Now I'm trying to query a linked table. The following query works.
SELECT * FROM SQL2.PA.dbo.Counties
This one doesn't:
Select * from OPENQUERY(SQL2,"SELECT * FROM SQL2.PA.dbo.Counties")
Msg 102, Level 15, State 1, Line 1
Incorrect syntax near 'SELECT * FROM SQL2.PA.dbo.Counties'.
Can you tell me why?
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Apr 19, 2004
I have two tables in a linked server that I am trying to accomplish the following:
Server is called Medic, schema is informix, catalog is v001
table names are findet and findhdr
1) join indices (patkey and invno)
2) distinct count (finhdr.patid)
3) sum currency(findet.amount)
4) within a date range(findet.ar_date)
5) having specific criteria (findet.proccode = "99201 thru 99205")
Any help is greatly appreciated!
JT
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Jan 25, 2008
Hi guys I need some help connecting to a LINKED SERVER. I have setup the LINKED SERVER via Enterprise Manager. This is what I did. I know this is a difficult thing to explain so I will try my best and attempt to give you a good understanding of the scenario.
1. I have three servers named DEVUK, DEVUS and DEVASIA.
2. DEVUK I can connect to via my computer and contains a databases called GOD.
3. I went into DEVASIA server and went to Administrative Tools > New ODBC Connection and called it DEVASIAUK.
4. Setup everything in there and tested the connection which completed successfully.
5. I am now on my computer where I have connected to DEVASIA and gone into Server Objects > Linked Servers.
6. I created a new LINKED SERVER and under GENERAL TAB have stated DEVASIAUK and Provider as SQL Server.
7. Security I have used NT_AUTHORITYand option BE MADE USING THE LOGINS CURRENT SECURITY CONTEXT.
I have the SQL Command: SELECT * FROM DEVASIAUK ... tblLocalTable
Am I doing this right? Or am I missing something here? I am new to Linked Servers but it shows it is executing a query but then it says Login Failed.
Appreciate any help, thanks, Onam
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Jul 23, 2005
I am transferring data from SQl Server 2000 to Oracle through LinkedServers.It takes considerable amount of time while transferring datafrom SQL Server to oracle.Both these databases are at remotelocations.I am executing a Stored procedure on SQL Server and what itdoes is,It has an Insert statement which reads the data from a table inSQL Server and inserts it into the Oracle table. It is a very timeconsuming process.Vice-Versa it takes very less time for Oracle-SQLServer transfer.If anybody has a clue towards reducing the time in SQLServer-ORACLE transfer.
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Jun 23, 2006
Hello Everyone,I have a very complex performance issue with our production database.Here's the scenario. We have a production webserver server and adevelopment web server. Both are running SQL Server 2000.I encounted various performance issues with the production server with aparticular query. It would take approximately 22 seconds to return 100rows, thats about 0.22 seconds per row. Note: I ran the query in singleuser mode. So I tested the query on the Development server by taking abackup (.dmp) of the database and moving it onto the dev server. I ranthe same query and found that it ran in less than a second.I took a look at the query execution plan and I found that they we'rethe exact same in both cases.Then I took a look at the various index's, and again I found nodifferences in the table indices.If both databases are identical, I'm assumeing that the issue is relatedto some external hardware issue like: disk space, memory etc. Or couldit be OS software related issues, like service packs, SQL Serverconfiguations etc.Here's what I've done to rule out some obvious hardware issues on theprod server:1. Moved all extraneous files to a secondary harddrive to free up spaceon the primary harddrive. There is 55gb's of free space on the disk.2. Applied SQL Server SP4 service packs3. Defragmented the primary harddrive4. Applied all Windows Server 2003 updatesHere is the prod servers system specs:2x Intel Xeon 2.67GHZTotal Physical Memory 2GB, Available Physical Memory 815MBWindows Server 2003 SE /w SP1Here is the dev serers system specs:2x Intel Xeon 2.80GHz2GB DDR2-SDRAMWindows Server 2003 SE /w SP1I'm not sure what else to do, the query performance is an order ofmagnitude difference and I can't explain it. To me its is a hardware oroperating system related issue.Any Ideas would help me greatly!Thanks,Brian T*** Sent via Developersdex http://www.developersdex.com ***
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Mar 29, 2001
Is there a way to set four part reference used in distributed query to a short
name in local server, so for each query you do not have to type the LONG four
part ref. repeatedly to linked server objects ?
Thanks a lot.
-Steve
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Apr 20, 2001
I need to query a linked server (which is Oracle) with some parameters. When I try to use a four part SQL statement, it does not work. But when I try to use OPEENQUERY statement, it works just fine. Problem comes when I need to send some parameters with the OPENQUERY'S 'query' part.
For example, the following statement works just fine:
SELECT *
FROM OPENQUERY(OracleLinked, "SELECT ACCOUNTNUMBER, POSTINGDATE FROM ORA_SERVER.FINANCEENTRY WHERE DATEOFENTRY BETWEEN '2000.01.01' AND '2000.01.31'")
But If I try to use:
DECLARE @DynamicSQL VARCHAR(1000),
@StartDate VARCHAR(10),
@EndDate VARCHAR(10)
SET @StartDate = '2000.01.01'
SET @EndDate = '2000.01.31'
SELECT @DynamicSQL = "SELECT ACCOUNTNUMBER, POSTINGDATE FROM ORA_SERVER.FINANCEENTRY WHERE DATEOFENTRY BETWEEN '" + @StartDate + "' AND '" + @EndDate + "'"
--SELECT @DynamicSQL
SELECT *
FROM OPENQUERY(OracleLinked, @DynamicSQL)
it does not work.
Well, I did some research and found out that OPENQUERY does not accept variables for its arguments. See the link below:(http://msdn.microsoft.com/library/psdk/sql/ts_oa-oz_5xix.htm)
Then is there any way I can accomplish what I want to on the Remote server?
Thanks in advance for your help.
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Apr 25, 2001
I have a delete query on a linked server that never ends. I can do a select where ID = x and it returns lickity split but when I do a delete where id = x it never comes back? Any Clues???
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May 23, 2001
I have created a linked server using an ODBC connection to an Access database. The command I used for this was:
EXEC sp_addlinkedserver
@server = 'Testaccess',
@srvproduct = '',
@provider = 'MSDASQL',
@datasrc = 'test'
GO
where 'Testaccess' is the name of the linked server and 'test' is the name of the ODBC connection. [The ODBC connection stores the name of the Access datbase.]
I can run sp_tables_ex and view the table_schem, table_cat etc etc
BUT when I try to run a query on the linked server, I get the following message:
"7312 - Invalid use of schema and/or catalog for OLE DB provider '%ls'. A four-part name was supplied, but the provider does not expose the necessary interfaces to use a catalog and/or schema."
I am attempting/using the following command specifying the linked server name.database name.owner.table name in the FROM clause:
select a.*
from testaccess.testdb.dbo.temptable a
Any ideas what I am doing wrong??
thanks
Jan
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Jun 13, 2001
I have an ODBC DSN that lets me see the data via Access, however, in EM I set up the DB2 server as a linked server using the OLEDB provider for ODBC, with a Linked server name of DB2DB, a product name of MY DB2 connection and the data source of db2 (which is the DSN name)
The Provider string, Location and Catalog I leave blank
Under security, I assign all users to be a valid username/password
I can then see the tables in EM, but when I try to query them in QA I get this
Select * from db2db...customer
Server: Msg 7313, Level 16, State 1 Line 1
Invalid Schema or catalog specified for provider 'MSDASQL'
I am using SS7.0, and DB2 connect V7.1
I do not have/use SNA server
My actual requirement is to have a job autmatically run every day to copy certain records onto the SQL Server, but the first step is to be able to query the DB2 data
any ideas ? I think I need to enter something in the catalog box, but what ?
thanks in advance.
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Jul 26, 2001
We want to read data from a DB2 view so we set up a linked server in SQL7 (ODBC via Neon's Shadow Direct) but when we issue the following type of query from Query analyzer:
select * from openrowset(my_db2link,'select * from test.myview where mycol = ''value''')
it just hangs, and we can't kill the process (the Enterprise manager 'KIll Process' button has no effect!)
- the only way we can get rid of these queries seems to be to stop/restart SQL Server
When we look at current activity in Enterprise manager the process seems to be waiting for a resource (either MISCELLANEOUS or PAGEIOLATCH)
The query works OK if I run it on the server using Shadow direct, so the error must be between SQL Server and Shadow direct
Has anyone seen this error before?
Thanks in advance, John
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Oct 18, 2000
Three weeks ago we began a project that involved importing data from an AIX DB2 6 environment via a linked server configuration. Following the data import a second query was executed against the db2 environment using data that resides in the new table within SQL 7 in the join statement (a very basic example is provided below) This was all accomplished in sequence via a package.
SELECT F_NAME, L_NAME, PASSWD
FROM SQL7.LOCALSRV.dbo.NEWUSERTBL as new, DB2.SYSIBM.MASTERTBL.OLDUESRTBL as old
WHERE new.USER_ID = old.USER_ID
Originally we had no problems and while the execute time was not exactly speedy it was tolerable as we would revisit optimization after we established if what we were trying to accomplish was feasible. At the outset the first data import to build the local table was immeadeate and then the distributed query to retirieve more info to build another local table against the DB2 server took aproxiamtly 1 minute per user row returned. Currently we are looking at still having an immeadeate data import (a matter of seconds to build the first table)but now we are looking at more than 1 hour returned for 1 correesponding row of data off of DB2. We are utilizing the the IBM DB2 ODBC DRIVER.
Any input or suggestions as to what could be causing this or perhaps a more efficeint way to code the statement would be much appreciated. Thanks in advance.
Adrian
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Oct 12, 1999
I am trying to run a select statements against linked server.
I have NT server running SQL7 Enterprice and Rumba2000. I used Rumba driver to configure a DSN (ODBC based) to a AS400/DB2. Then I created a linked server. Good news are : I can see a list of tables.
Bad news : when I am trying to run a select statement either through stored procedures or directly in SQL analyzer I am receiving error message Object 'linkedservername.databasename.tablename' doesn't exist.
What am I missing here?
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Feb 10, 2003
SQL 2000
I have a process that calls several stored procs which access a database on a linked server.
code that fails:
SELECT DISTINCT em.er_id, em.er_name, bp.bpo_id, bp.bpo_name
FROM [dbrptc13dayoldprod].ues.dbo.Employer em
Inner Join [dbrptc13dayoldprod].ues.dbo.BPO bp ON
em.er_bpoid = bp.bpo_id
Error message:
Server: Msg 913, Level 16, State 8, Line 1 Could not find database ID 6. Database may not be activated yet or may be in transition.
The database is accessible from query analyzer with a simple select from the linked server. Also if I change any letter in the ues.dbo.Employer em or ues.dbo.BPO bp part to a different case it works fine.
For example: -changed the BPO to BPo- this works!
SELECT DISTINCT em.er_id, em.er_name, bp.bpo_id, bp.bpo_name
FROM [dbrptc13dayoldprod].ues.dbo.Employer em
Inner Join [dbrptc13dayoldprod].ues.dbo.BPo bp ON
em.er_bpoid = bp.bpo_id
Please help I can't figure this one out.
Thanks.
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Jan 14, 2004
We are using linked servers, additionally, some of our tables are being merge replicated with identity ranges.
When I run a SELECT statement on a non-merged table looking for a constant value, I get the proper return.
When I run a SELECT statement on a merge-repl. table looking for a constant value like "5", it returns 0 records, execution plan says it's using a "Constant Internal table" - however, when I run the same select statement and change the where clause to ">4" it returns the row with "5" and whatever other rows match the criterion. What in the world is going on?
Thanks for your help.
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Jul 8, 2013
I run a query using an Oracle Linked Server.
This seems to run forever.
SELECT * FROM LinkedServer..Schema.View WHERE TN= '2034561295'
...and any other field in the where clause work fine.
SELECT * FROM LinkedServer..Schema.View WHERE SPID= '8088'
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Feb 13, 2008
I am working on a linked server where a few of the queries use almost exclusively remote tables from 1 other server. I have read somewhere that there are options to specify where a query is performed but can't find it anywhere. Could someone tell me the command and how to use it or point me to something to read about it.
Thanks
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Jul 20, 2005
Hi,I'm getting errors when trying to run a query over linked servers thatworks fine on a single server. The error text that comes up in QA isas follows;Server: Msg 8180, Level 16, State 1, Line 1Statement(s) could not be prepared.Server: Msg 170, Level 15, State 1, Line 1Line 1: Incorrect syntax near 'Qry1208'.Server: Msg 125, Level 15, State 1, Line 1Case expressions may only be nested to level 10.Both servers are using same version SQL 2k, SP3 and (as far as I cansee) the level of nesting goes down 3 maybe 4 deep at the max?Any help on this would be greatly appreciated.Rob.
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Dec 8, 2006
Hello,
I have attempted to set up a linked server to an Excel 2003 workbook, and I get an OLEDB error when I attempt to query against it. Some notes about the workbook;
-It has one worksheet in it named 'Add Revenue Accts'.
-The name of the workbook is 'Revenue_to_All_Accounts.xls'
-Its location is \cdnbwfin1dataCDunnComdataReportsReba_HolmesRevenue_All_Accounts
I have the linked server configured as follows;
-Linked Server; REVENUE_TO_ALL_ACCOUNTS
-Provider; Microsoft Jet 4.0 OLE DB Provider
-Data Source; \cdnbwfin1dataCDunnComdataReportsReba_HolmesRevenue_All_AccountsRevenue_to_All_Accounts.xls
-Provider String; Microsoft.Jet.OLEDB.4.0;Data Source=\Cdnbwfin1DataCDunnComdataReportsReba_HolmesRevenue_All_AccountsRevenue_to_All_Accounts.xls;Persist Security Info=False
When I attempt the following query;
SELECT * FROM OPENQUERY(REVENUE_TO_ALL_ACCOUNTS, 'SELECT * FROM [Add Revenue Accts$]')
The following message appears, and no results are returned;
[OLE/DB provider returned message: Unspecified error]
OLE DB error trace [OLE/DB Provider 'Microsoft.Jet.OLEDB.4.0' IDBInitialize::Initialize returned 0x80004005: ].
Msg 7399, Level 16, State 1, Procedure sp_tables_ex, Line 20
OLE DB provider 'Microsoft.Jet.OLEDB.4.0' reported an error.
I have Googled this error, but I have not found anything that really points to what the problem might be. What could be the problem?
Thank you for your help!
cdun2
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Aug 28, 2015
Is it possible to pull name & email from Active Directory using SSMS w/o a linked server connection?
And this would be using SQL 2008
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Aug 27, 2007
I receive the following error message when I run a distributed query against a loopback linked server in SQL Server 2005:
The Microsoft Distributed Transaction Coordinator (MS DTC) has cancelled the distributed transaction.
To resolve this problem, I was told that running a distributed query against a loopback linked server is not supported in SQL Server 2005. And I am suggested to use a remote server definition (sp_addserver) instead of a linked server definition to resolve this problem. (Although this is only a temporary resolution, which will deprecate in Katmai)
However, I run into another problem when I use the remote server definition. I receive the following error message:
Msg 18483, Level 14, State 1, Line 1
Could not connect to server 'ServerNameSQL2005' because '' is not defined as a remote login at the server. Verify that you have specified the correct login name.
Could anyone please help me out?
(I include the reproduce steps for the first error message, followed by my resolution that generates the second error message)
======
Reproduce steps for the first error message
======
On the ComputerAInstanceA instance, run the following statement to create a database and a table:
CREATE DATABASE DatabaseA
GO
USE DatabaseA
GO
CREATE TABLE TestTable(Col1 int, Col2 varchar(50))
GO
INSERT INTO TestTable VALUES (1, 'Hello World')
GO
On the ComputerBInstanceB instance, run the following statement to create a database and a table:
CREATE DATABASE DatabaseB
GO
USE DatabaseB
GO
CREATE TABLE TestTable (Col1 int, Col2 varchar(50))
GO
On the ComputerAInstanceA instance, create a linked server that links to the ComputerBInstanceB instance. Assume the name of the linked server is LNK_ServerB.
On the ComputerBInstanceB instance, create a linked server that links to the ComputerAInstanceA instance. Assume the name of the linked server is LNK_ServerA.
On the ComputerBInstanceB instance, run the following statement:
USE DatabaseB
GO
CREATE PROCEDURE InsertA AS
BEGIN
SELECT * from LNK_ServerA.DatabaseA.dbo.TestTable
END
GO
On the ComputerAInstanceA instance, run the following statement:
USE DatabaseA
GO
INSERT INTO TestTable
EXEC LNK_ServerB.DatabaseB.dbo.InsertA
GO
Then I receive the first error message.
=======
My resolution that generates the second error message
=======
On the ComputerBInstanceB instance, run the following statement:
sp_addserver 'ComputerAInstanceA'
GO
sp_serveroption 'ComputerAInstanceA', 'Data Access', 'TRUE'
GO
USE DatabaseB
GO
CREATE PROCEDURE InsertA AS
BEGIN
SELECT * FROM [ComputerAInstanceA].DatabaseA.dbo.TestTable
END
GO
On the ComputerAInstanceA instance, run the following statement:
USE DatabaseA
GO
INSERT INTO TestTable
EXECUTE [ComputerBInstanceB].[DatabaseB].[dbo].[InsertA]
GO
Then I receive the second error message.
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Apr 16, 2015
Using a 32-Bit SQL Server 2008 Express on my LOCAL PC. I downloaded the Advantage 8.1 OLE DB Provider and created a linked server to a REMOTE Advantage 8.1 database server. There is no data dictionary on the Advantage server.
Here is my linked server:
EXEC master.dbo.sp_addlinkedserver @server = N'1xx.1xx.xx.1xx', @srvproduct=N'Advantage', @provider=N'Advantage OLE DB Provider', @datasrc=N'1xx.1xx.xx.1xxeccET', @provstr=N'servertype=ads_local_server;tabletype=ads_cdx;'--tabletype=’ADS_ADT’ (this test works too)
EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname=N'1xx.1xx.xx.1xx',@useself=N'False',@locallogin=Null,@rmtuser='adssys',@rmtpassword=Null
Testing the link succeeds with above. Using “ads_REMOTE_server” instead of “ads_local_server” and the test fails. Here is my problem, using the following queries will not work. Perhaps it’s a permissions issue? When I specify my local credentials for the remote server in the linked server it still does not work.
SELECT * FROM OPENQUERY([1xx.1xx.xx.1xx], 'SELECT * FROM ActType')
OLE DB provider "Advantage OLE DB Provider" for linked server "1xx.1xx.xx.1xx" returned message "Error 7200: AQE Error: State = HY000; NativeError = 5004; [Extended Systems][Advantage SQL][ASA] Error 5004: Either ACE could not find the specified file, or you do not have sufficient rights to access the file. Table name: ActType SELECT * FROM ActType".
Msg 7321, Level 16, State 2, Line 2
An error occurred while preparing the query "SELECT * FROM ActType" for execution against OLE DB provider "Advantage OLE DB Provider" for linked server "1xx.1xx.xx.1xx".
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Jul 20, 2005
We have a need to retrieve Sybase data within a MS SQL Serverapplication. We are using SQL Server's linked database feature withthe Sybase 12.0 OLE DB driver. It takes 5 minutes to run a query thattakes 2 seconds from isql.Any suggestions?Thanks
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Oct 17, 2007
Hi,
I am having a table with 40 columns and it contains 4 million records. I got the results for one year in 40 secs. After tuning, it is retuning in 24 secs( what i have done is i created index on order by fields).
Can you please suggest me in which way I can increase the performance.
Note: I am using only one table with Primary Key.
Thanks
Dinesh
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