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
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
Hi,
The distributed query seems to work on the management studio of the server where I have linked the other server to but not accross the network on other management studio with the same impersonated logins. The error I get is.
OLE DB provider "SQLNCLI" for linked server "usbo-sql01" 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 18452, Level 14, State 1, Line 0
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
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.
I am trying to write some admin only procedures which will collect information to one of my development server from other production and development servers.
I have created linked servers to access these other servers on the development server. This development server is SQL Server 2000 EE. Other servers which I want to access are 2000 and 2005 (vaious editions)
E.g I have another development server called PRODTEST which is SQL Server 2005 and on the development server I have created a linked server pointing to PRODTEST called TESTLINKSRV. I want to access new object catalog view (as I do not want to use sysobjects)
When I run the following query
SELECT * FROM [TESTLINKSRV].[DBNAME].[sys].[objects]
I get following error,
OLE DB error trace [Non-interface error: OLE DB provider does not contain the table: ProviderName=' TESTLINKSRV ', TableName='" DBNAME "."sys"."objects"'].
Msg 7314, Level 16, State 1, Line 1
OLE DB provider ' TESTLINKSRV ' does not contain table '"DBNAME"."sys"."objects"'. The table either does not exist or the current user does not have permissions on that table.
So I try this query
SELECT * FROM [TESTLINKSRV].[DBNAME].[sys.objects]
and I get following error
Msg 208, Level 16, State 1, Line 1
Invalid object name TESTLINKSRV.DBNAME.sys.objects'.
So bottom line is how do I access catalog views on a 2005 server from a 2000 server using linked server?
I hope someone understands what I am trying to achieve. Please let me know what is it that I am doing wrong.
Thank you
Can someone please shed some light on what seems to me to be a common requirement.
If I create an alias or linked server to Server1 - say Alias1 - on Server1 and then use that name in a query on Server1, a remote/distributed query is always used (even though we are running on the local server and that overhead is completely unnecessary).
Is SQL Server really not capable of deciding that
select * from Alias1.db1.dbo.table1
and
select * from Server1.db1.dbo.table1
should be optimized and executed exactly the same when Alias1 is Server1, but that it is a distributed query ONLY when Alias1 is really referring to a remote server? I realize that the four part name is not necessary when I am referring to objects on the current server, but I am trying to write code that is server instance independent.
It just seems that if that is not possible, then the only way to create system independent stored procs that can run in dev, staging, and production environments and work with multiple databases on multiple servers is to create all sorts of scripts to regenerate all the procs whenever you move a database between servers?
If SQL Server is even close to the enterprise big iron server that MS now claims it is, it surely needs to support running in dev, staging, and production environments and work with multiple databases on multiple servers?!
I'm really looking for someone to tell me I'm missing something simple, and of course you can do this - but complex workarounds are invited too :-)
This is not something I am investigating as an academic exercise, I am already doing this, but I have to figure out how to do it better because with all these unnecessary distributed queries, performance is horrible.
Thanks
Sean
Is it possible to query linked servers without the Distributed Transaction Coordinator service enabled or allowing network access?
Is that ONLY for transactions? What if I just wanted to read the data and nothing else?
Hi,
There was a distributed trasaction set up and functioning fine, But gave the following error recently.
The operation could not be performed because the OLE DB provider 'SQLOLEDB' does not support distributed transactions
[OLE/DB provider returned message: Distributed transaction error]
Could anyone please help why is this error and how can be rectified.
Thanks in advance
John Jayaseelan
Hi there,
I am trying to link one sql server to other sql server(version 7.0). I was able to link server1 to server2 by creating an odbc source and am able to see the tablenames when i click on the linked server tables.
My problem is..when i am trying to query on these tables its giving me error saying "OLE DB provider 'MSDASQL' does not contain table xxxxxx"
i am using select * from servername.tablename.dbo.tablename.
Any help on this will be appreciated.
Ravi
We are migrating a database that makes use of distributed queries. In other words, it queries data from other databases on the same server, as well as from databases on linked servers.
The use of linked servers as well as linked databases (for lack of a better term) presents a challenge since we will need to register various new linked servers in the target environment. Ideally, we would like the database to be portable such that we will not have to worry about registering linked servers regardless of where it is hosted.
Is there a way to write distributed queries so that do not rely on linked servers/databases? For example:
SELECT * FROM [ServerName].[Database].[Owner].[TableName]
If there is such a method, it would make our database much more portable in terms of server migration.
TIA.
El Salsero
I have a database containing my own tables and data and I wanted tobe able to query this against an accountancy program which has an ODBCdriver. This was never a problem with MS Access and Jet but I hit Jet'slimitations and have moved to SQL.Creating my own SQL database was no problem, but I was unsure of thebest way to be able to be able to have my SQL tables and my accountancysoftware tables appearing in the same Access front end.I created a linked server to the accountancy program. This wassuccessful in that I could see all the tables below the linked server inenterprise manager.My problem occurs when I try to bring the data from these tablesinto my SQL database.I create a new view in my database:-SELECT *FROM OPENQUERY(SAGE_SERVER, 'SELECT * FROM STOCK')(My linked server is called 'SAGE_SERVER' and I am trying to retrieveall columns from the STOCK table.)I then try to save this view and get the following errors.ODBC Error: [Microsoft][ODBC SQL Server Driver][SQL Server]The operationcould not be performed because the OLE DB provider 'MSDASQL' was unableto begin a distributed transaction.[Microsoft][ODBC SQL Server Driver][SQL Server]OLE DB Error Trace[OLE/DBProvider 'MSDASQL' ITransactionJoi JoinTransaction returned 0x8004d00a].Thanks in advance,Marcus Thornton.
View 1 Replies View RelatedWe get the below error while performing a distributed transaction on linked server. We have several linked servers configured in the source server and all of them succeed with the distributed transaction except on one.
We did all the basic troubleshooting and moreover the distributed transactions work fine if we use a remote server instead.
Error:
OLE DB provider "SQLNCLI10" for linked server "SERVERNAME.REDMOND.CORP.MICROSOFT.COM" returned message "No transaction is active.".
Msg 7391, Level 16, State 2, Line 3
The operation could not be performed because OLE DB provider "SQLNCLI10" for linked server "SERVERNAME.REDMOND.CORP.MICROSOFT.COM" was unable to begin a distributed transaction.
Test code:
begin distributed transaction
select top 10 * from [SERVERNAME.REDMOND.CORP.MICROSOFT.COM].master.sys.objects
ROLLBACK
Source server :
Microsoft SQL Server 2008 (RTM) - 10.0.1779.0 (X64)
Nov 12 2008 12:10:04
Copyright (c) 1988-2008 Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 6.0 <X64> (Build 6001: Service Pack 1) (VM)
Target server :
Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (Intel X86)
Jul 9 2008 14:43:34
Copyright (c) 1988-2008 Microsoft Corporation
Enterprise Edition on Windows NT 5.2 <X86> (Build 3790: Service Pack 2)
A recent SharePoint upgrade has rendered several views obsolete. I am redefining them so that our upper level executive reports show valid data.(yes, I know that doing anything to sharepoint could cause MS to deny support, having said that, this is something I've inherited and need to fix, pronto) The old view was created like so:
USE [AHMC]
GO
/****** Object: View [dbo].[vwSurgicalVolumes] Script Date: 09/04/2015 09:28:03 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE VIEW [dbo].[vwSurgicalVolumes] AS
SELECT
[code]....
As I said, this view is used in a report showing surgical minutes.SharePoint is now on a new server, which is linked differently (distributed?) I've used OPENQUERY to get my 'new' query to work;
SELECT *
FROM OPENQUERY ([PORTALWEBDB], 'SELECT
--AllLists
AL.tp_ID AS ALtpID
,AL.tp_WebID as altpwebid
,AL.tp_Title AS ALTitle
[code]....
My data (ie surgical minutes, etc) seems to be in the XML column, AUD.tp_ColumnSet . So I need to parse it out and convert it to INT to maintain consistency with the previous view. How do I do this within the context of the view definition?Here is a representation of the new and old view data copied to excel :
<datetime1>2014-08-14T04:00:00</datetime1><float1>2.000000000000000e+000</float1><float2>4.190000000000000e+002</float2><float3>1.600000000000000e+001</float3><float4>8.110000000000000e+002</float4><sql_variant1 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sqltypes="http://schemas.microsoft.com/sqlserver/2004/sqltypes"
[Code] ....
can't format it to make it look decent. InHouseCases =2, InHouseMinutes=419, OutPatientCases =16, OutPatientMinutes=1230. This corresponds to the new data I can see in the XML column; 2.000000000000000e+000 is indeed 2 and 4.190000000000000e_002 is indeed 419.
I have Two Access Databases connected as Linked servers through ODBC driver.
I want to run a Distributed Query .
The SQL is as follows:
SELECT Alias1.FiledNames,Alias2.FiledNames from
FROM LinkedServer1.DatabaseName1.dbo.Tablename1 AS Alias1,
LinkedServer2.DatabaseName2.dbo.Tablename2 AS Alias2
It gives me this error message.
ODBC: Msg 0, Level 19, State 1
SqlDumpExceptionHandler: Process 12 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
Connection Broken
Am i missing something?
Thanks in Adavance
Puru
if it is possible to run a distributed query against 2000 from 2005, what would the OPENDATASOURCE parameters look like? I'd like to be able to pivot without copying my older 2000 db to 2005 or using linked servers..
For reference, here's an example of a distrib query that reads excel...
ie SELECT * INTO XLImport3 FROM OPENDATASOURCE('Microsoft.Jet.OLEDB.4.0',
'Data Source=C: estxltest.xls;Extended Properties=Excel 8.0')...[Customers$]
Hello, I've a problem with a software developed in C# with the framework 2.0. This is the error I receive : The operation could not be performed because OLE DB provider "SQLNCLI" for linked server "XXX_LINKED_SERVER" was unable to begin a distributed transaction. OLE DB provider "SQLNCLI" for linked server "XXX_LINKED_SERVER" returned message "No transaction is active.". If I try directly to restart the process, it works fine. Is there someone who can help me ? This is the process 1. In C# --> Call of a Query : select from the linked server (db in sql 2005) and insert into a table SQL 2005 2. In the C# --> using (TransactionScope scope = new TransactionScope()) and insert in a table in SQL 2005 which is link server Thank in advance.
View 1 Replies View RelatedHi Folks,
Is there anyway of running a Store Procedure in Database A that's going against database B? I have a store procedure that does a select on table A in database A and a select on table B in database B.
The problem is that the user have exec rights to the store procedure, which is an object in database A. The store procedure won't run because of permission rights to table B in database B.
Is there anyway of queryiny table B without giving the user select rights to that table? Anyone out there had the same problem?
thank you
Joe R.
Hi,
I am trying to execute a proc on Linked Server. Now as the Linked server name starts with 2, all of the following fails...
Any help to make it work highly appreciated...
exec [2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail]
exec 2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail
exec "2Kxyz.SQLJobMon.dbo.usp_SQLAlertSMTPEmail"
Hi Guys.
Many posted this message and no one anwered. i am facing the same problem now.
Got the error message
Server: Msg 7391, Level 16, State 1, Line 1
The operation could not be performed because the OLE DB provider 'SQLOLEDB' was unable to begin a distributed transaction.
[OLE/DB provider returned message: New transaction cannot enlist in the specified transaction coordinator. ]
My MSDTC is on. I had setup linked server using OLEDB.
Microsoft did'nt give enough info or solution for this. ANybody faced this prob and solved it?
Any suggestions , comments, solutions?
-MAK
I have a procedure where it runs a procedure on another server and returns the results to the calling procedure and dumps it into a temp table..
I get the following message:
-----
Server: Msg 7391, Level 16, State 1, Procedure proc1, Line 60
The operation could not be performed because the OLE DB provider 'SQLOLEDB' does not support distributed transactions.
[OLE/DB provider returned message: Distributed transaction error]
----
But both the servers are running the distributed transaction corordinator
example:
create procedure dbo.proc1
@param1 int
as
create table #temp
(col1 int
col2 varchar(255)
)
insert into #temp
EXEC server.database.dbo.proc2 @param1 = @param1
go
I am trying to set up linked servers between several SQL 7.0 servers, but everytime I try, I get the message:
Error 18456: Login failed for user 'NT AUTHORITYANONYMOUS LOGON'
Only thing is, I thought I was logged into both servers using my NT name. Any ideas?
Can anyone tell me why Query B (see below) works but Query A does not? When Query A is run the following error is received. I would love to know why using a subquery allows Query B to run.
Server: Msg 8623, Level 16, State 2, Line 1
Internal Query Processor Error: The query processor could not produce a query
plan.
Query A.
SELECT pt.Description,
pa.Method_Order,
os.LogAction,
Sum(pa.Amount) Total
FROM BO_PaymentAmountsApplied pa,
BO_OrderStatusLog os,
Members.members.dbo.MBR_PaymentTypes pt
WHEREpa.LogID = os.LogID AND
os.LogAction IN (1,2,3) AND
pt.PmntTypeID = pa.MethodID AND
pa.OrderID = 1526925
GROUP BY pt.Description, pa.Method_Order, os.LogAction
Query B.
SELECT pt.Description,
pa.Method_Order,
os.LogAction,
Sum(pa.Amount) Total
FROM BO_PaymentAmountsApplied pa,
BO_OrderStatusLog os,
Members.members.dbo.MBR_PaymentTypes pt
WHERE (pa.LogID = os.LogID) AND
(os.LogAction IN (1,2,3)) AND
(pt.PmntTypeID = pa.MethodID) AND
(os.orderid = pa.orderid) AND
(pa.OrderID in (select orderid from BO_PaymentAmountsApplied where orderid = 1526925))
GROUP BY pt.Description, pa.Method_Order, os.LogAction
I am trying to set up linked servers between several SQL 7.0 servers, but everytime I try, I get the message:
Error 18456: Login failed for user 'NT AUTHORITYANONYMOUS LOGON'
Only thing is, I thought I was logged into both servers using my NT name. Any ideas?
I have the following distributed query. I am running it from
SQL Server "CASTER" while it links databases from SQL1 and SQL2
Servers.
SELECT T1.ENTITY, T2.EMPLNAME, T1.EMPLID, T1.FISCAL_YR,
T1.ACCOUNT_NBR10, T1.POSITION_NBR, JOBCLASS, FINAL_BGT_FTE,
FINAL_BGT_PCT, FINAL_BGT_SAL, FINAL_BGT_FTB, TERM
FROM SQL1.BUDGET.DBO.BDBPDCTB T1,
SQL2.TECHRIS.DBO.TRBASCTB T2
WHERE T1.FISCAL_YR = '2003'
AND T1.EMPLID > 0
AND T1.EMPLID = T2.EMPLID
AND T1.ENTITY = 'H'
AND T1.ORGID = 'TT'
AND EXISTS (SELECT T3.EMPLID FROM SQL1.BUDGET.DBO.BDBPDCTB T3
WHERE T3.EMPLID = T1.EMPLID --------ERROR HERE
AND T3.ENTITY = 'H'
AND T3.FISCAL_YR = '2003'
GROUP BY T3.EMPLID
HAVING SUM(T3.FINAL_BGT_PCT) > 100)
ORDER BY 1,2,5,6
In the error line, it says, T1 does not match with a table name or alias name used in the query.
SELECT T1.ENTITY, T2.EMPLNAME, T1.EMPLID, T1.FISCAL_YR,
T1.ACCOUNT_NBR10, T1.POSITION_NBR, JOBCLASS, FINAL_BGT_FTE,
FINAL_BGT_PCT, FINAL_BGT_SAL, FINAL_BGT_FTB, TERM
FROM SQL1.BUDGET.DBO.BDBPDCTB T1,
SQL2.TECHRIS.DBO.TRBASCTB T2
WHERE T1.FISCAL_YR = '2003'
AND T1.EMPLID > 0
AND T1.EMPLID = T2.EMPLID
AND T1.ENTITY = 'H'
AND T1.ORGID = 'TT'
AND EXISTS (SELECT T3.EMPLID FROM SQL1.BUDGET.DBO.BDBPDCTB T3,SQL1.BUDGET.DBO.BDBPDCTB T5
WHERE T3.EMPLID = T5.EMPLID --------NO ERROR
AND T3.ENTITY = 'H'
AND T3.FISCAL_YR = '2003'
GROUP BY T3.EMPLID
HAVING SUM(T3.FINAL_BGT_PCT) > 100)
ORDER BY 1,2,5,6
When I am going to have the query like the above, i dont get any error.
Any help wd be appreciated.
Thanks
Sathya
I did not get any reply for my previous post. So i am just trying to make my doubt clear.
I have a subquery within a distributed query.
Eg:
SELECT T1.deptID
FROM SERVER1.ACCOUNT.DBO.DEPT as T1
where deptid IN (SELECT T2.DEPTID
FROM SERVER2.DEPARTMENT.DBO.DEPT as T2
WHERE T1.DIVISIONID = T2.DIVISIONID)
In the above query.. T1.DIVISIONID is not recognoized and it says
T1 is not a table or alias name though I have declared it upfront.
You have to note that both the ACCOUNT and the DEPARTMENT database are on different servers.
If they are on the same servers, this should not be a problem at all. Also, all the security is working perfectly for running a distributed query for me.
What is the means to make this subquery work.
Thanks for any help
Sathya
SELECT * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0','Excel 8.0;Database=W:MyExcel.xls', 'select * from [Sheet1$]')
which works on my local server with Microsoft office XP Professional installed
But keep on failing on the QA server which has MDAC installed only, no Microsoft Office installed
The error msg is 7399. I thought it's because of permission issue.
But problem still resides after I move the Excel file into that QA NT server and execute the statement with a service account which has sysadmin permission on both NT Server and SQL Server
What might be te reason?Why it's working perfectly in my Local server.
--------------------------------------
This is the error message:
Server: Msg 7399, Level 16, State 1, Line 2
OLE DB provider 'Microsoft.Jet.OLEDB.4.0' reported an error.
[OLE/DB provider returned message: Unspecified error]
OLE DB error trace [OLE/DB Provider 'Microsoft.Jet.OLEDB.4.0' IDBInitialize::Initialize returned 0x80004005: ].
Hi All!
While running a distributed query i am having following problem.
'
Server: Msg 7391, Level 16, State 1, Procedure t25, Line 8
The operation could not be performed because the OLE DB provider 'SQLOLEDB' was unable to begin a distributed transaction.
[OLE/DB provider returned message: New transaction cannot enlist in the specified transaction coordinator. ]
OLE DB error trace [OLE/DB Provider 'SQLOLEDB' ITransactionJoin::JoinTransaction returned 0x8004d00a].
'
can any body give any solution for this ?
Regards,
Shabber.
Hello
I have 2 servers: myLocalServer (SQL2005) and myRemoteServer (SQL2000), both in the same LAN. I wish to syncronize a remote table with a local table (both share the same structure) by means of a stored procedure. The amount of rows to carry from the local to the remote table is about 20,000. The query takes more than a minute, and I would like to take down that time. Can you please help me?
myRemoteServer is declared in myLocalServer by means of a Linked Server object, and I declared a synonym called Syn_RemoteTable which represent the remote table.
First I tried a cursor, but it did not worked:
declare curLocalTable cursor local forward_only static read_only for
select ID, Value from myLocalTable where UpdateTimeStamp>@LastUpdate
open curLocalTable
fetch curLocalTable into @ID, @Value
while @@Fetch_Status=0
begin
if exists(select ID from Syn_RemoteTable where ID=@ID)
begin
update Syn_RemoteTable set Value=@Value where ID=@ID
end
else
begin
insert into Syn_RemoteTable (ID, Value) values (@ID, @Value)
end
fetch curVentasMensuales into @ID, @Value
end
close curLocalTable
deallocate curLocalTable
Other way that I tried -performing equally poorly- was:
update Syn_RemoteTable
set Value=T.Value
from Syn_RemoteTable
inner join
(
select ID, Value from myLocalTable where UpdateTimeStamp>@LastUpdate
) as T
on T.ID=Syn_RemoteTable.ID
insert into Syn_RemoteTable
(
ID,
Value
)
select
ID,
Value
from myLocalTable
where
UpdateTimeStamp>@LastUpdate and
ID not in (select ID from Syn_RemoteTable)
Hello,
I have been looking for an example of how to do an ad hoc distributed query to an MS Access database. I've tried this;
select * from OpenRowSet('Microsoft.Jet.OLEDB.4.0',
'\Server1DataCorporateCPSDailyToolsTest.mdb' ;'admin';'',Names)
I recieve an OLEDB provider error when I try it this way. The version of Access is 2003. The database 'Test.mdb' is on a network share, and the table is called 'Names'. The share is located on the machine that hosts SQL Server 2000.
Is there a setting in sql server that can be set to allow/disallow ad hoc distributed queries?
What am I missing?
Thank you for your help!
cdun2
Hi,
I hope I'm in correct forum..
I'm working on simple OLE DB provider that should be usable in SQL server as a linked server. The provider should provide some support for SQL (certain SELECTs for now) and therefore I'd like the SQL server to delegate portions of query processing to the provider instead of fetching all rows and doing SELECT on its own.
Alas, I'm no OLE DB expert and my provider apparently doesn't implement enough things to actually make SQL server pass the query to it. My provider's session currently implements mandatory interfaces + couple of others (IDBCreateCommand, IDBSchemaRowset) and via provider properties, I 'claim' to have full support for SQL92. I'm testing the provider with SQL Server 2005 ('Express edition').
I'd like to know what am I missing in the implementation, or whether/how can I find out what makes SQL server decide between fetching full rowset and creating a command to let rthe query run in provider.
Thanks,
L.
Below given query is being executed on a Sql 2k box with 4CPU and 2GB RAM
testXX.DB_GRP.dbo.group1-----> is a sql 7 box with single CPU and 512MB RAM
The result set is abt 30,000 rows .
This whole Process is taking abt 5 mins to do the Insert Process.
Is there a way to optimise the query and bring down the execution time
insert into testXX.DB_GRP.dbo.group1
select num, group_num,group_desc from group2
where id = 20
---------------
If we just run the
select num, group_num,group_desc from group2
where id = 20
it takes 10 secs to execute this selct statement so i was wondering why it takes 5 mins to do the insert process across the network thru linked server query.
Any help would be appreciated?
Thanks,
MK
Hello All!
I have created the following Distributed Query to maintain the current data between local server and Remote server:
EXEC SP ADDLINKEDSERVER 'SSNTDB2'
go
-----UPATE asp org table
set identity insert tn.asp org on
go
insert into tn.asp orhh ( ao key, ao name, ao pid, ao login link, ao login instr top, ao login instr bot,ao login link nm, ao lms enabled, ao lms prefix )SELECT ao key, ao name, ao pid, ao login link, ao login instr top, ao login instr bot,ao login link nm, ao lms enabled, ao lms prefix from SSNTDB2.icomm live.tn.asp org jung w
WHERE jung.ao key not in ( select ao key from tn.asp orhh )
go
set identity insert tn.asp org off
go
---update themesw table
set identity insert tn.themesw on
go
insert into tn.themews (seq nbr,name,source dir,th desc,update by,update dt,partner id,Inst Payer Nbr,def lang key,t status,def audience key)
SELECT seq nbr,name,source dir,th desc,update by,update dt,partner id,Inst Payer Nbr,def lang key,t status,def audience key FROM SSNTDB2.icomm live.tn.themes jun
WHERE jun.seq nbr not in (select seq nbr from tn.themes)
go
set identity insert tn.themesw off
GO
EXEC droplinkedserver 'SSNTDB2'
I want to create the stored procedure to make this script run automatically and create a scheduled job so that the local server can be updated it's records periodically. What is the best way to do this? Any tips will be appreciated..
Thanks John
We have an interesting performance issue with a distributed query. When run by a system-administrator account, the remote computer returns the requested row set. It does the same thing for small row counts (<=7) for user accounts. On larger row counts, however, the user account returns the ENTIRE rowset from the remote table, and performs the restrict operation locally. Performance-wise, this results in a difference between 11 seconds and 12 MINUTES. I'm assuming it's some sort of security issue in DTC, but the remote server is on Windows Server 2000, and there's no security button for DTC under Component Services.
Suggestions?
The query in question is:
EXEC ("INSERT INTO #XML (vin, ws_xml, lang_id)
SELECT slo.vin,
br.xml,
br.lang_id
FROM #SALE_LINEUP_ORDER slo
INNER JOIN RemoteServer.mydatabase.dbo.build_record br ON slo.vin = br.vin
INNER JOIN #LANGUAGE_IDS li ON br.lang_id = li.lang_id")