Error Code ORA-00001Error Message ORA-00001: unique constraint (constraint_name) violated

Error Reason An INSERT or UPDATE statement execution which violating the unique key constraint on the Table

Error Resolution

1)Drop The unique Constraint

2)Allow duplicates by droping the constraint

Error Code ORA-00054Error Message ORA-00054: resource busy and acquire with NOWAIT specified

Error Reason An insert or update or select command against a LOCK Table

Error Resolution

1)Try to execute the statment after sometime

2)Execute the command with a NOWAIT commands

Error Code ORA-00257Error Message ORA-00257: archiver is stuck. CONNECT INTERNAL only, until freed

Error Reason Error occurs at the archival of the redo logs

Error Resolution

1)Check the storage space availabilty

2)Check the initialization paramter ARCHIVE_LOG_DEST

Error Code ORA-00600Error Message ORA-00600

Error Reason Internal Error generated by generic kernal code of the Oracle Software

Error Resolution Should be reported to oracle support

Error Code ORA-12154Error Message ORA-12154: TNS:could not resolve service name

Error Reason This error occurs due to missing tnsnames.ora file or tnsname.ora file not configured properly .

Error Resolution Reconfigure the tnsname.ora

Error Code ORA-03113Error Description ORA-03113: end-of-file on communication channel

Error -Reason An unexpected end of file occured During communication

Error Resolution

1)Check the network may be the network went down

2)check the server may be the server downError Code ORA-00936Error Description ORA-00936: missing expression

Error -Reason missing sysntax when executing SQL statmentsError Resolution 1) Check your statement sytax properly

Error Code ORA-01017Error Description ORA-01017: invalid username/password; logon denied

Error -Reason Login activity uisng worng database credentialsError Resolution 1) Enter the login credentials properly

Error Code ORA-01555Error Description ORA-01555: snapshot too old (rollback segment too small)

Error -Reason Insufficient Rollback segmentsError Resolution 1) Make larger rollback segments

Error Code ORA-04031Error Description ORA-04031: unable to allocate num bytes of shared memory

Error -Reason More usage of shared memory than availabe

Error Resolution

1. Reduce the use of shared memory availabe.2. Increase the SHARED_POOL_SIZE paramter

Error Code ORA-01031

Error Description ORA-01031: insufficient privileges

Error -Reason Due to the lack of the privileges for the login user to the database objectsError Resolution Contact the Oracle DBA for accessing privilages

Error Code ORA-01000Error Description ORA-01000: maximum open cursors exceeded

Error -Reason Each user is restricted in using the number of cursors at a time . You may get this error when your cursor limit exeeds the set parameter

Error Resolution

shut down Oracle database , increase the OPEN_CURSORS parameter in the initialization file, and restart Oracle database .

Error Code ORA-12560Error Description ORA-12560: TNS:protocol adapter error

Error -Reason This is an error related to the protocol adaptor

Error Resolution Check the Protcol specification

Error Code ORA-27101Error Description ORA-27101: shared memory realm does not exist

Error -Reason Unable to locate the shared memory realm

Error Resolution

Make sure that ORACLE_SID and ORACLE_HOME are correct.

A tralling slash on the ORACLE_HOME can cause error

ORACLE_HOME=’/home/oracle/prod’ —- Correct

ORACLE_HOME=’/home/oracle/prod/’ —-WrongError Code ORA-04030Error Description ORA-04030: out of process memory

Error -Reason

This is a common error while running import . This error is related to RAM settings. If the server having low RAM and memeory parameters are configured with a high configuration causes this error

Error Resolution

The best solution is to increase the RAM of the server if your server running with a low RAM other option is to Increase pga_aggregate_target

Error Code ORA-00020

Error Description ORA-00020: maximum number of processes (%s) exceeded

Error -Reason

Maximum number of processes are exceeded than the limit in oracle database

Error Resolution Login as SYSDBA and kill the unwanted sessions

Error Code ORA-04030Error Description ORA-04030: out of process memory

Error -Reason

This is a common error while running import . This error is related to RAM settings. If the server having low RAM and memeory parameters are configured with a high configuration causes this error

Error Resolution

The best solution is to increase the RAM of the server if your server running with a low RAM other option is to Increase pga_aggregate_target

Error Code ORA-04030Error Description ORA-04030: out of process memory

Error -Reason

This is a common error while running import . This error is related to RAM settings. If the server having low RAM and memeory parameters are configured with a high configuration causes this error

Error Resolution

The best solution is to increase the RAM of the server if your server running with a low RAM other option is to Increase pga_aggregate_target