Re: ORA-01017: invalid username/password; logon denied

From: Mike Tarrani <>
Date: Mon, 16 Aug 1999 00:48:26 -0700
Message-ID: <>

TNS = Transparent Network Substrate. In a nutshell it is Oracle's method of providing seamless and transparent connectivity to an Oracle database (or databases). TNS is well documented, but you can get books devoted solely to TNS and other Oracle networking components: Oracle Networking, Oracle Press (Toledo is the author) is an inexpensive (~$35.00) reference on the subject. You need TNS in order for your client's to "talk" to the database listener.

Jon wrote:

> What is TNS, and why can't manuals give straight-forward,
> understandable explanation? I think I know the answer ... Oracle
> wants to force you to purchase technical support contract.
> What do I need TNS for? Does this have something to do with the
> listener, and the reason I can't get JDBC to work to make a connection
> to my database in a Java program?
> On Tue, 10 Aug 1999 15:48:08 -0400, "Brent Douglas"
> <Brent.Douglas_at_DAYTONOH.NCR.COM> wrote:
> >i tried it from sqlplus, and connect user/pass_at_tnsEntry DID work....
> >
> >when you say service_name, are you using the name of your database or the
> >name of your TNS service? like if you look in your tnsnames.ora file, you
> >should use the paragraph name - like
> >
> >connect me/mypass_at_mydatabase
> >
> >good luck!
> >brent
> >>Sqlplus to the database...
> >>sqlplus <user>/<password>_at_service_name
> >>and I get an error :
> >>ORA-01017: invalid username/password; logon denied
> >>and after, under Sqlplus I can connect to the DB with the same username and
> >>password...
> >>Is is a Network problem ?
> >
> >.....
> >>Thierry Jouin
> >>Régie Multimédia
> >
> >
> >
Received on Mon Aug 16 1999 - 09:48:26 CEST

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