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

Re: ORA-12560

Niall Litchfield


On Tue, 24 Aug 2004 15:13:46 +0500, fahd mirza <fahd-m@(protected):
> Alert log says nothing.
> Both listener service and database service have been started with same
> account. I am at lost.
> regards,
> Fahd

I'd be logging a Tar as well at this point as a brief search on
metalink suggests a number of potential causes for the 12500 as well
as those already mentioned.

1. Oracle Trace enabled.
2. Oversizing the SGA and running out of process memory for Oracle.exe
3. misset ORACLE_HOME
4. no permissions on Oracle home for the account that runs the
service (normally this would be the local system account on NT.

etc etc .

Niall Litchfield
Oracle DBA
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