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read from tnsnames.ora file

Sushil Suvarna

Joined: May 28, 2004
Posts: 14
Hi ,
Thanks for replying
I am using apache tomcat 5.0.24.
I am using driver jdbc : oracle:thin @ server : port:sid,username,password

I want the thin driver to read from tnsnames.ora file
To do that the above driver would become
jdbc : oracle:thin@hostString,password where hostString is taken from tnsnames.ora file
But this give me an Io Exception :So Exception was generated.

If instead of "thin" driver i type "oci" .It works fine. But i want to use thin driver.
Please help out.
[ September 15, 2004: Message edited by: Bear Bibeault ]
Paul Sturrock

Joined: Apr 14, 2004
Posts: 10336

I want the thin driver to read from tnsnames.ora file

Can you explain why you want to do it this way? How do you work out which of the entries in tnsnames.ora you actually want to connect to? And what is the exception you see?

The reason why the oci driver might work where the thin driver doesn't is usually because you have not configured TNS properly.

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Jyothi Lature
Ranch Hand

Joined: Oct 31, 2001
Posts: 60

JDBC thin driver does not use tnsnames.ora to make a connection.
Using a tnsname here instead of the SID is quite an easy error to make. If it is a name in your TNS file, then replace the host string name with the network name of the Oracle server. That should resolve your problem.

Also, to add to this, some extra info with regard to OCI and Thin driver is...

The JDBC OCI driver provides an implementation of the JDBC interfaces using the Oracle Call Interface (OCI).
The JDBC OCI driver requires an Oracle client installation including Net8.

The JDBC Thin driver establishes a direct connection to the database server using Java Sockets.
The JDBC Thin driver does not require Oracle software on the client side; however, there must be an Oracle listener process correctly installed on the Oracle server.

Hope this helps.

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Jyothi<br />Sun Certified Java Programmer<br />Brainbench Certified for Javascript
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