In your first code snippet, you are still using the uppercase SID. Try it lowercased!.

tnsping works with the identifier, which most often is not the same as the SID.

$ head -4 $ORACLE_HOME/network/admin/tnsnames.ora
oradb_btest = ( DESCRIPTION = ( ADDRESS_LIST =
  ( ADDRESS      = ( HOST = oradb )( PORT = 1521 )( PROTOCOL = TCP )))
  ( CONNECT_DATA = ( SERVICE_NAME = basetest ))
  )
$ tnsping oradb_btest

TNS Ping Utility for HPUX: Version 10.2.0.4.0 - Production on 13-MAY-2
+013 18:24:26

Copyright (c) 1997,  2007, Oracle.  All rights reserved.

Used parameter files:
/prod/oracle/v102/network/admin/sqlnet.ora


Used TNSNAMES adapter to resolve the alias
Attempting to contact ( DESCRIPTION = ( ADDRESS_LIST = ( ADDRESS = ( P
+ROTOCOL = TCP)( PORT = 1521) ( HOST = oradb))) ( CONNECT_DATA = ( SER
+VICE_NAME = basetest)))
OK (90 msec)
$

[download]

Enjoy, Have FUN! H.Merijn
/code

In reply to Re^3: DBI and Oracle ORA-12505 error by Tux
in thread DBI and Oracle ORA-12505 error by jmb

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.