473,405 Members | 2,282 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,405 software developers and data experts.

Microsot Linked Server & Oracle10 Performance Issues

Hi all,

I am having major performance issues between my linked server (SQL Server) and an Oracle10 db. I have created a number of views in my SQL Server database which map to corresponding Oracle tables via a linked server.
In my Oracle environment via Sql*Plus I run a simple query (count) which does a join between a 400K table and a 2.5 mil table - this takes about 10 seconds.
In my SQL Server environment using the views created via Linked Server, the same query is still running some 15 minutes later. Task Manager indicates that the Oracle service has been constantly doing something for the last 15 minutes.

I don't know what is going - is Oracle having problems with the SQL supplied by the Linked Server? Can someone please help overcoming these problems or at least explaining what is happening.

I am on a Windows Server 2003 machine (4G RAM) running SQL Server 2005 and Oracle10 for NT. I have tried both the Microsft and the Oracle ODBC drivers and there is no difference.

Thank you.
Alex.
Feb 16 '08 #1
0 1532

Sign in to post your reply or Sign up for a free account.

Similar topics

7
by: Chris Ritchey | last post by:
Hmmm I might scare people away from this one just by the title, or draw people in with a chalange :) I'm writting this program in c++, however I'm using char* instead of the string class, I am...
6
by: Andreas Lauffer | last post by:
I changed from Access97 to AccessXP and I have immense performance problems. Details: - Access XP MDB with Jet 4.0 ( no ADP-Project ) - Linked Tables to SQL-Server 2000 over ODBC I used...
12
by: Neil | last post by:
I previously posted re. this, but thought I'd try again with a summary of facts. I have an Access 2000 MDB with a SQL Server 7 back end. There is a view that is linked to the database via ODBC...
3
by: Freelobly Li | last post by:
Hi all, I have encountered two problems when using linked tables; the linked table is connected to SQL server 2000. 1) How can I add the N prefix of a string constant in a query in order to...
3
by: S. van Beek | last post by:
Dear reader, To work with linked tables is a professional method of working with a frond end and back end mdb. Working with linked tables on a local pc gives an acceptable performance but...
115
by: Mark Shelor | last post by:
I've encountered a troublesome inconsistency in the C-language Perl extension I've written for CPAN (Digest::SHA). The problem involves the use of a static array within a performance-critical...
10
by: Jim Devenish | last post by:
I have a split front end/back end system. However I create a number of local tables to carry out certain operations. There is a tendency for the front end to bloat so I have set 'compact on...
2
by: kuNDze | last post by:
hi, on localServer i execute this query INSERT INTO table (A, B, C) SELECT A, B, C FROM LinkedServer.myDB.dbo.table everything is fine. But if i execute this one INSERT INTO...
0
by: aberton | last post by:
Hi all, I am having major performance issues between my linked server and an Oracle10 db. I have created a number of views in my SQL Server database which map to corresponding Oracle tables via a...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.