All Oracle Error Codes
Oracle DBA Forum

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


Smith, Steven K - MSHA


That error is because you defined the database link as PRUEBAS.US.ORACLE.COM and you reference it in the statement as PRUEBAS.
Be consistent.
Steve Smith

Envision Technology Partners / MSHA MSIS Team

Desk: 303-231-5499



-----Original Message-----
From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of crcbedoy@proteccion.com.co
Sent: Monday, September 11, 2006 3:46 PM
To: oracle-l@freelists.org
Subject: SOS - URGENT********DB LINK

Could you please help me??

I am tryieng to create a DB link such as:


And then, when I try to do:

insert into SRHCXN1.empleado
select * from userid.empleado@PRUEBAS where emp_fecha_ingreso>=to_date('20060901','yyyymmdd')

I get the following error:

select * from srhcxn2.empleado@PRUEBAS where emp_fecha_ingreso>=to_date('20060901','yyyymmdd')
ERROR at line 2:
ORA-12154: TNS:could not resolve service name

I checkl the TNSNAMES.ORA and everything is alright, could anybody please help me??.. I am in a rush:(.. I have the privileges as a DBA, my username is XXX, creating running a script to insert values to the schema SRHCXN1, getting the data from the userid.


Isabel Bedoya Gómez
Centro de Gestión y Control
Tel. 2307500 ext: