Problems Connecting to Database in Forms Developer

Please can someone help me, I installed Oracle9i personal edition on my PC (OS XP PRO) about 4 months ago. But I've only just started using the forms developer. When I try to run the form in the browser window I can't connect to the database. The application freezes and won't respond. Occasionally I get the error message
ORA-12514 saying TNS listener cannot resolve the service name. My tnsnames.ora file seems to be correct but I'm not sure if it is in the right directory?
Can someone please give me some advice.
Thankyou.

Guys,
I have been doing this for years - on solaris, linux and windows. You have 2 Oracle homes - one for the database and one for the forms. 6i - or iDS does not matter - 2 Oracle Homes. Same on Linux/Solaris/Windows - ok.
Define the TNS_ADMIN environment variable (applies to all 3 OS above). Set it to a directory of your choice - better yet create one. On solaris and linux /var/opt/oracle is a good choice. On windows create a directory of your choice. Also define the TWO_TASK and ORACLE_SID environment variables to match your database server settings.
Ftp the database server's tnsnames.ora and sqlnet.ora files to the directory you created (TNS_ADMIN points to).
To be certain that you are not using the Forms' Home/network/admin/tnsnames.ora and sqlnet.ora files - rename them. You will not use them and you won't need them (unless you want to edit them to include the tnsnames.ora and sqlnet.ora entries from your Database server's /network/admin/tnsnames.ora and sqlnet.ora files.
That is it - next time you connect from the forms you should be able to connect. If you want provide the connect string (3rd field in the connection window) to ensure you pointing to the right db server.
You don't need to configure your Forms' network services again - all you do is use the Oracle database server's network configuration files.
Hope this proves useful.

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E

<BLOCKQUOTE>quote:<HR>Originally posted by Mrs. Houser:
I can't find anything wrong with my TNSNAMES.ORA file, yet I can't connect to my database through forms or reports.
The errors I keep getting is TNS-12154 and TNS-12203. Please advise. Thanks in advance.
E<HR></BLOCKQUOTE>
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(o_0)
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