Is there a way that I can prevent people from running
pass through queries on my SQL Server - without
removing linked server access? I simply want to make
sure that the processing occurs on the clients machine,
not on my server....
Thanks!
Dean
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.
Good morning one and all,
Does any1 know if when A SQL pass through query is executed in access (to a SQL srv dbase) wether or not access will wait until that call is completed before running other steps (in an macro say). I don't think it does but would appreciate a more definitive answer.
TIA for any and all help
Gurmi
Is there any easy way to pass (dynamically) parameters to pass-throughqueries,when working with MS Access as front-end for SQL Server ?Thanks.
View 1 Replies View Related
Hi,
I want to pass below given query into a variable
"if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[ <POS_MONTH>]]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
DROP TABLE [dbo].[ <POS_DATE>]
GO
SELECT * INTO [dbo].[<POS_DATE>] ]
FROM SG_POS_Template
WHERE 1 = 0;
GO"
Where [<POS_DATE>] is a parameter by which value will be assigned dymanically.....anybody please help me out....!!
Hi,
We have a client who runs SQL Server 2000 queries on one database server and performance is approx. 4 seconds. If the database is backed up, no tables in the query or indexes on these tables are modified (we may run a small script that affects stored procedures, views, etc.) the query can run virtually forever.
The customer is runing a cluster and we are running a stand-alone. Although, the two environments that they run in and have these wildly different results in are the same.
The queries are not worth listing (join a couple of tables and views, select a few columns, put on a few conditions--nothing crazy).
Is this normal behavior for MS SQL Server?
I've personally seen where a database is backed up and query plans and performance are different from one server to another, but we are looking at extreme cases here. In fact, on the second server, the majority of the queries are faster and only a couple run very slowly.
Also, the query optimizer seems to be making poor decisions at this custoemer. For example, two tables will be cross joined (forming over 200 million records) and then table scans ensue. The process in some cases will take a 4 second query to 45 minutes.
To me none of this makes any sense. I've been working with SQL Server since 1997 and have not experienced any type of performance problems or variances of this magnitude. Although this is a 6GB database, SQL Server 7 ran on a terabyte without even blinking, so I wouldn't understand why this would have anything to do with it.
Also hampering our efforts is that we do not have easy access to this SQL Server database to get our hands on it and debug these issues.
Does anyone know of a way to examine these issues in a "system wide" manner to determine what the problems could be since the problems are not specific to the database (i.e. .bak file) but seem to be specific to the server?
They have also had database corruption (an index that wouldn't update) and had to roll back the database. Would that indicate that the MDF/LDF's are unstable? Is there a way to figure out if there is some type of MDF/LDF file structure corruption?
Thanks,
Henry.
Need to loop through a Cursor to linked server:
-----------------------------------------------
Declare Cursor_Loop_serverName Cursor for
select cast(name as varchar(30)) name, cast(dbID as varchar(5)) dbID,
cast(crdate as varchar(25)) crdate
from ServerName_A.master.dbo.sysdatabases
***How could I pass @serverName to change the from to
from @RemoteServer.master.dbo.sysdatabases?
I have tried dynamic sql, it did not work after the Declare Cursor for...
thanks for the help
David
Is it possible to link to an SQL 2005 server db from a SQL 2000 server? Is there a driver for this?
View 1 Replies View Relatedcan 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.
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
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
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.
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
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
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
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
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
Is it possible to add a 6.5 database as a linked server to a 7.0 database and query from it ?
View 6 Replies View RelatedHi.
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.
:)
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.
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
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
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
How to determine by means of T-SQL
if a linked server is available(for processing with its tables)?
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
View 1 Replies View RelatedWe 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
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.
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?
View 1 Replies View RelatedHello,
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..
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????
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
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
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???