473,573 Members | 2,918 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Linked Server and Oracle10 Performance Issues

2 New Member
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 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 1264

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

Similar topics

7
4811
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 ordered by my instructor and she does have her reasons so I have to use char*. So there is alot of c in the code as well Anyways, I have a linked...
6
6758
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 the SQL Profile to watch the T-SQL-Command which Access ( who creates the commands?) creates and noticed:
12
2620
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 and has been in place for several years without any performance problems. Recently I added a couple of fields to the output of the view, and it...
3
6162
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 search for double byte characters? I found that the search returns no result if no N prefix is added. If I use passthrough query, it works. Any...
3
2386
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 in case you start working with linked tables on a server (network) the performance will be drastically reduce.
10
7685
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 close' I think that I have read in some threads (althoug I cannot find them now) that others place such tables in a local, linked database. I could...
2
11250
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 LinkedServer.myDB.dbo.table (A, B, C)
4
8269
by: Fred Zuckerman | last post by:
I have a A2K database that includes some linked tables (these links are SQL views). Sometimes there are "issues" with the SQL server and the users receive a timeout error whenever they try to access those records. The timeout error occurs after 60 seconds. Many times the user has given up and used ctrl-alt-del to end task thinking their...
0
1544
by: aberton | last post by:
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...
0
7780
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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
0
7694
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
0
8202
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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
1
7787
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 Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
0
8065
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
0
3732
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
0
3733
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
1303
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
0
1041
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating...

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.