Some of the common Oracle error codes:

ORA-12500: TNS:listener failed to start a dedicated server process
ORA-12541: TNS:no listener
ORA-12514: TNS:listener does not currently know of service requested
ORA-12154: TNS:could not resolve service name
ORA-12535: TNS:operation timed out
ORA-01017: invalid username/password; logon denied

ORA-00001 ORA-00054 ORA-00060 ORA-00257 ORA-00600 ORA-00604 ORA-00904 ORA-00933 ORA-01008 ORA-01017 ORA-01078 ORA-01422 ORA-01427 ORA-01460 ORA-01652 ORA-01653 ORA-01654 ORA-01830 ORA-01841 ORA-01843 ORA-01858 ORA-01861 ORA-02291 ORA-03135 TNS-03505 ORA-04068 ORA-12154 ORA-12170 ORA-12500 ORA-12504 ORA-12505 ORA-12514 ORA-12516 ORA-12518 ORA-12528 ORA-12535 ORA-12541 ORA-12545 ORA-12560 ORA-12705 ORA-12899 ORA-17002 ORA-17003 ORA-17041 ORA-20001 ORA-27101 ORA-28009 ORA-30036 FRM-40508 FRM-40735

Enter the Oracle error code you want to lookup: ORA-   

Latest Forum questions:

LDR-03134: Upgrade
LDR-03134: Oracle Eror
ORA-28000: Contact database administrator
ORA-28000: Account is LOCKED
FRM-40508: Change the property
OCI-21500: OCI Bug indeed
OCI-21500: OCI BUG
ORA-32132:
ORA-32132: ORA-32132: maximum iterations cannot be changed
FRM-40508:
FRM-40508: frm:40508:oracle error:unable to insert record
ORA-01078: RMAN manual
ORA-01078: backup & restore database
ORA-01078: ya..got it....thanz.....
ORA-01078: Startup mount
ORA-01078: ORA-19870: error while restoring backup piece
ORA-01078: Database open?
ORA-12535: Check host
ORA-01078: ORA-19870: error while restoring backup piece
ORA-12545: ORA-12545: Connect failed because target host or object does not exist