Please start any new threads on our new site at https://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

 All Forums
 SQL Server 2005 Forums
 Other SQL Server Topics (2005)
 Query crashing, error reported: Server DNE

Author  Topic 

lbstech
Starting Member

3 Posts

Posted - 2008-10-03 : 16:33:49
i was wondering if anyone could lend some advice. I'm experiencing a major issue at a customer site that has got me completely stumped. The kicker is that since data is confidential I cannot get a database backup in my own test environment to test whether the problem is environment or data related.

The basic problem is that while running a query on a particular table in their database the query will loop through the result set (VB6 with ado using MDAC 2.8) until a certain point at which the program controlling the loop crashes and MDAC spits out Server Does not exist or Access is Denied. Both of those reasons have been confirmed as not being the cause.

Also I have compiled the program that is handling the recordset in three different ways to limit the number of results (1 - 1000, 1001 - 1999, 2000-3000) and the program completes successfully in this manner.

I am stumped as to what could cause the error, and everything I have tried has resulted in little help and a lot of frustration.

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-10-03 : 16:40:19
It's a connectivity error. So you need to work with your network admins to figure out why the application can't reach the database server at certain times.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog
Go to Top of Page

lbstech
Starting Member

3 Posts

Posted - 2008-10-03 : 16:45:59
What would cause the connection to intermittently drop (mid query)? Or rather, what types of questions / things should I be asking the network admin to check. What types of tests can be run? Other queries don't experience the same problem, what can I check to find out what is different about this one?
Go to Top of Page

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-10-03 : 16:50:22
Can they run a network sniffer?

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog
Go to Top of Page

lbstech
Starting Member

3 Posts

Posted - 2008-10-05 : 08:27:25
Ok, I was able to run another test. I actually created a utility the ran the same query on the database and ran it from the desktop of the server. I still receive the same error. My frustrations continue.
Go to Top of Page
   

- Advertisement -