AH vestiges of SQL*Net V1 still running around. Back then it was "T:hostname:sid" where T stood for TCP/IP. Also Oracle recommended that SID's should be "case insensitive". Try to figure that one out. Dick Goulet Senior Oracle DBA PAREXEL International 978.313.3426 information transmitted in this communication is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please destroy any copies, contact the sender and delete the material from any computer. ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Syed Jaffar Hussain Sent: Tuesday, October 21, 2008 9:32 AM To: ltiu@xxxxxxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Connecting to Oracle using sqlplus, bypass tnsnames.ora question You can do it (I guess from 10gR1), something called, 'connection less configuration'as follows: sqlplus username/password@//hostname/ipaddres:PORT/SID Example: sqlplus scott/tiger@//host1:1521/ORCL On Tue, Oct 21, 2008 at 4:20 PM, Lyndon Tiu <ltiu@xxxxxxxxxxxxx> wrote: Hi guys, Is there a way to use sqlplus and connect to a database without using tnsnames.ora? Specify the whole connect string in the command line? Thanks. -- Lyndon Tiu -- //www.freelists.org/webpage/oracle-l -- Best Regards, Syed Jaffar Hussain Oracle Certified Master (10g) http://www.oracle.com/technology/ocm/shussain.html Oracle ACE http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID: 126 OCP 8i,9i & 10g DBA RAC Certified Expert Official Oracle RAC SIG Representative for Saudi Arabian region (http://www.oracleracsig.org/) I blog at http://jaffardba.blogspot.com/ -------------------- "Winners don't do different things. They do things differently."