Make sure you install the 32-bit Oracle client, not the 64-bit. I’ve spent quite a lot of time trying to get the oracle adapter to work. This article was of great help, thanks.

FYI, the error I was getting when I had the 64-bit version installed(and even after I installed the 32-bit client but hadn’t uninstalled 64-bit) was "ORA-12557: TNS:protocol adapter not loadable"

I’d recommend just using Windows 2003 32-bit with BizTalk 2006 if possible. Those last few days at work have been very frustrating.

The error "TNS:could not resolve service name" almost always indicates one of two possibilities: 1) your TNS entry is not entered properly, or 2) a disconnect exists between the TNS entry and your ODBC connection. I’d recommend that you try the following to diagnose the underlying problem:

1) On your BizTalk Server, run SQLPlus. Try to login with the appropriate TNS name and user credentials. If this fails, you need to update your TNS file so that your machine can "resolve/find" your Oracle database.

2) Open Administrative Tools -> Data Sources (ODBC). Select the System DSN tab, select your DSN, and click configure. Click the Test button, and confirm that you are able to successfully test the connection. If this fails, make sure you have the TNS name and user credentials entered appropriately.

My guess is that the underlying problem is one (or both) of these things. Give these two tests a shot, and feel free to e-mail or post any additional questions.

I have installed Biztalk Enterprise edition on a windows 2003 standard Edition (32 Bit server). I have run a simple program and Biztalk works fine. How ever i face some issues with Oracle adapter installation.

1. Created a ODBC System DSN.

2. I then installed the Oracle adapter and added the adapter to the adpters list. Created the send and receive handlers

3. I imported the project, Bindings, Rules that works fine on another machine and tried to run the project.

4. I Restarted the host instances and get the Event Type: Information Agent OracleDb started

5. After a few seconds I get the following errors in the application logs

Event Type: Error
Event Source: Microsoft BizTalk Adapters for Enterprise Applications
Event Category: None
Event ID: 0
Date: 7/3/2007
Time: 10:09:15 AM
User: N/A
Computer: LONGOSAPPDEV1
Description:
Exception occurred:
Error Code: 12154 (0x2f7a)
08004 : [Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve service name

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

4. There is no issues with the tns names. I can connect using toad which uses the same tns.ora file.

5. When i open the Receive location configuration I see the tree structure of the Oracle database.

Transport properties> Managing events. There is no Porblems with the receive locations or code as it is running fine on other machines.

Did you face any issues in a 32 bit machine? And i tried to make change registry key: HKEY_LOCAL_MACHINESOFTWAREMicrosoftBizTalkAdapters changing the path to Progra~2 and then followe steps 5 and 6 too. Then i dont see any errors in the application logs and i have reverted back to as it was before.

Any help is appreciated.

Thanks

N Reddy

Best of luck!