Instalei o client do Oracle 11gR2 no meu Ubuntu 10.04.
Rodando certinho...
jcorrea@ubuntu:/$ sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jun 2 17:38:59 2010
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL>; exit
jcorrea@ubuntu:/$ tnsping stewie
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 02-JUN-2010 17:39:13
Copyright (c) 1997, 2009, Oracle. All rights reserved.
Used parameter files:
/u01/app/jcorrea/product/11.2.0/client_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.36.2)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = stewie)))
OK (10 msec)
jcorrea@ubuntu:/$ oerr ora 12514
12514, 00000, "TNS:listener does not currently know of service requested in connect descriptor"
// *Cause: The listener received a request to establish a connection to a
// database or other service. The connect descriptor received by the listener
// specified a service name for a service (usually a database service)
// that either has not yet dynamically registered with the listener or has
// not been statically configured for the listener. This may be a temporary
// condition such as after the listener has started, but before the database
// instance has registered with the listener.
// *Action:
// - Wait a moment and try to connect a second time.
// - Check which services are currently known by the listener by executing:
// lsnrctl services
// - Check that the SERVICE_NAME parameter in the connect descriptor of the
// net service name used specifies a service known by the listener.
// - If an easy connect naming connect identifier was used, check that
// the service name specified is a service known by the listener.
// - Check for an event in the listener.log file.
jcorrea@ubuntu:/$ oerr ora 1555
01555, 00000, "snapshot too old: rollback segment number %s with name \"%s\" too small"
// *Cause: rollback records needed by a reader for consistent read are
// overwritten by other writers
// *Action: If in Automatic Undo Management mode, increase undo_retention
// setting. Otherwise, use larger rollback segments
jcorrea@ubuntu:/$
