All Oracle Error Codes
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Frequent Oracle Errors

TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

Re: [suse-oracle] how to get rid of ORA-12514

Tom Corr


On Monday 18 September 2006 12:04, Sebastian Reitenbach wrote:
Was the new database on the same box as the database that is causing the

There are several things that can help:

1 - There is a "default" service based on your "DB_UNIQUE_NAME" that seems to
get enabled for me, that does not show up in the "lsnrctl status services"
command. This has driven me nuts before.

2 - you can try setting "local_listener" on the database. This should resolve
to a TNSNAMES.ORA alias that points to the hostname and port information for
the listener. This may help your database instance "auto register" with the

3 - i would remove the listener entry that you tried to place in the
listener.ora file, as this should not be needed. The database server process
should register with the listener within a few minutes.

4 - some useful commands if using "spfiles", otherwise you must manually edit
the init.ora file:
sqlplus / as sysdba
show parameter serivice_names
show parameter local_listener
alter system set service_names='newservice' scope = both;
alter system set local_listener='tns_alias' scope = both;

Hope this helps...

> Hi,
> I am using oracle 10g. after a reboot of the database server, I get the
> ORA-12514: TNS:listener does not currently know of service requested in
> connect
> when I try to connect to it via sqlplus.
> looking at ora-code.com, it says, I shall wait a bit, it needs to register
> to the listener.
> just for testing, I created a new database with dbca, activated it
> in /etc/oratab, then restarted oracle. It says the listener is fine, it
> says the database was successfully warm started.
> a tnsping works well:
> TNS Ping Utility for Linux: Version - Production on 18-SEP-2006
> 17:45:28
> Copyright (c) 1997, 2003, Oracle. All rights reserved.
> Used parameter files:
> /opt/oracle/app/oracle/10.1.0/Db_1/network/admin/sqlnet.ora
> Used TNSNAMES adapter to resolve the alias
> Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST =
> (SERVICE_NAME = db002)))
> OK (0 msec)
> and a lsnrctl status shows me:
> lsnrctl status
> LSNRCTL for Linux: Version - Production on 18-SEP-2006 17:50:21
> Copyright (c) 1991, 2004, Oracle. All rights reserved.
> ------------------------
> Alias              LISTENER
> Version             TNSLSNR for Linux: Version -
> Production Start Date           18-SEP-2006 17:42:47
> Uptime             0 days 0 hr. 7 min. 34 sec
> Trace Level          user
> Security            ON: Local OS Authentication
> SNMP               OFF
> Listener Parameter
> File  /opt/oracle/app/oracle/10.1.0/Db_1/network/admin/listener.ora
> Listener Log
> File      /opt/oracle/app/oracle/10.1.0/Db_1/network/log/listener.log
> Listener Trace
> File     /opt/oracle/app/oracle/10.1.0/Db_1/network/trace/listener.trc
> Listening Endpoints Summary...
> Services Summary...
> Service "PLSExtProc" has 1 instance(s).
>  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this
> service... The command completed successfully
> shouldn't there be a Service db002 listed? this is my listener.ora file:
> # listener.ora Network Configuration
> File: /opt/oracle/app/oracle/10.1.0/Db_1//network/admin/listener.ora
> # Generated by Oracle configuration tools.
>  (SID_LIST =
>   (SID_DESC =
>     (SID_NAME = PLSExtProc)
>     (ORACLE_HOME = /opt/oracle/app/oracle/10.1.0/Db_1)
>     (PROGRAM = extproc)
>   )
>  )
>   )
>     (ADDRESS = (PROTOCOL = TCP)(HOST = = 1521))
>   )
>  )
> I added the following to the SID_LIST_LISTENER:
>   (SID_DESC =
>     (SID_NAME = db002)
>     (ORACLE_HOME = /opt/oracle/app/oracle/10.1.0/Db_1)
>   )
> then a lsnrctl status showed me the db002, but still the same error when
> trying to connect to the database with sqlplus.
> but afaik, I do not need to add this snippet in the listener.ora file, the
> database should register automatically.
> any hint how do I let the listener know about the databases available, what
> I can do or where to look for errors or warning messages?
> kind regards
> Sebastian

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