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ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA

572474Jan 19 2008 — edited Jun 23 2010
Hello,

I hit problem this time.

Database server: Oracle 11g Release 1
Tools: Visual Studio 2008 Team System 2008
ODT.NET version 2.111.6.20

When I am trying to connect to Database using SCOTT from either the Server Explorer or Code I get the error:

"ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA"

I can connect to the Database using SCOTT from Oracle SQL Devloper or JDeveloper without any problem.

Please help,
Ming Man

Comments

Sdhamoth-Oracle

Hi,

Did you set TNS_ADMIN environment variable? If not, can you try after setting it?

Thanks,

Senthil

TheVenkster

Senthil:

What should it point to?

Anyway, I re-installed both the 64-bit Oracle DB and the 32-bit client. There are two sets of TNSNames.Ora, Listener.Ora and SQLNet.ora, one for the 64-bit and one for the 32-bit in their respective folders.

I have no problem creating an ODBC DSN for the 64-bit version. The link connects fine to the DB

I have two TNS Listeners defined, one for the 64-bit and one for the 32-bit. While the 64-bit uses Port 1521, I am using Port 1522 for the 32-bit; I also made sure that Listener.ora refers to the same port. But when I use Oracle Net Configuration Assistant to configure Local Net Service Name Configuration to test the Service, it says "TNS:listener does not currently know of the service requested in connect descriptor.

I did check that both the TNS Listener services are running.

venki

TheVenkster

Senthil:

I don't know what happened but now, everything works just as expected. I am able to attach Oracle DB tables to an Access database using ODBC. I am able to also connect to the DB using the 64-bit drivers.

Venki

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Post Details

Locked on Jul 21 2010
Added on Jan 19 2008
#exception, #odp-net, #oracle
12 comments
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