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SQL Commands Disappearing?!?!?!?!?

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byrne1

Programmer
Joined
Aug 7, 2001
Messages
415
Location
US
I am experiencing a situation where I issue a lengthy SQL command to MS SQL Server 7.0 through MTS and it "disappears" - no errors or recordsets are returned. The command is "SELECT * FROM CUSTOMERS WHERE LASTNAME LIKE 'SMITH%'". When I issue this command from SQL Query Analyzer it takes 27 seconds to return 87 rows. When I issue this exact same command through MTS it does not return at all.

I've used the SQL Profiler to analyze the requests. It shows the commands from MTS starting but they never stop (or at least the profiler never reports them as stopping). The same commands coming from Query Analyzer are reported as starting and stopping without fail.

Here's a twist: I can issue less demanding commands (ie, one that doesn't take so long to process) through MTS and they come back fine. For example, when a user logs into my application, I use an SQL statement to verify the user name and password and status the user as logged in. This is routed through MTS and it comes back fine in less than a second. Same application, same PC, same MTS and SQL server, same SQL database. The only difference is that the CUSTOMERS table has over 800,000 records and the USERS table has only 5 records.

PLEASE HELP!
 
I've narrowed it down to the following code in my DLL file:

Dim obj As ObjectContext
Set obj = GetObjectContext()
obj.setcomplete

When I comment these lines out my code runs but I get an error reading "transaction context in use by another session". I don't understand why this is happening, especially since my code was running just last week!!!
 
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