ORA-02261: such unique or primary key already exists in the table
Cause: Self-evident.
Action: Remove the extra key.
Custom Search

More Oracle errors
ORA-24243access control entry (ACE) already exists
ORA-07569slspool: $CLOSE failure
NNL-00578dump_ldap: dump addresses in the domain or region to LDAP
ORA-22163left hand and right hand side collections are not of same type
ORA-13502Cannot rename SYSAUX tablespace
ORA-12461undefined level string for policy string
ORA-27122unable to protect memory
ORA-33003(XSAGDIMDROP) workspace object, to be transformed during data load, must be a base dimension and not otherwise referenced in the AGGMAP.
ORA-12067empty refresh groups are not allowed
NZE-43019pkcs11: No certificate found on smart card/HSM label with given cert label
NCR-04016NCRR: Last interface instance handle
PCB-00003Value of DBMS option invalid with given value of MODE option
ORA-28132Merge into syntax does not support security policies.
ORA-31499null value specified for required parameter string
ORA-10947trace name context forever
ORA-30725JDWP-based debugging is not yet available
SQL-01075you are currently logged on
ORA-07444function address string is not readable
ORA-31617unable to open dump file "string" for write
ORA-29308view TS_PITR_CHECK failure

TOP 20 Oracle errors
ORA-12504TNS:listener was not given the SERVICE_NAME in CONNECT_DATA
RMAN-20079full resync from primary database is not done
ORA-14411The DDL cannot be run concurrently with other DDLs
ORA-14760ADD PARTITION is not permitted on Interval partitioned objects
ORA-10877error signaled in parallel recovery slave string
ORA-32701Hang detected
ORA-00838Specified value of MEMORY_TARGET is too small, needs to be at least stringM
ORA-16957SQL Analyze time limit interrupt
ORA-16664unable to receive the result from a database
RMAN-08132WARNING: cannot update recovery area reclaimable file list
ORA-16665timeout waiting for the result from a database
ORA-16766Redo Apply is stopped
ORA-00000normal, successful completion
ORA-00837Specified value of MEMORY_TARGET greater than MEMORY_MAX_TARGET
RMAN-08137WARNING: archived log not deleted as it is still needed
DIA-48122error with opening the ADR block file [string] [string]
ORA-47988password should contain at least one numeric and one alphabetic character
IMP-00057Warning: Dump file may not contain data of all partitions of this table
ORA-55508Invalid input to Flashback Transaction Backout
ORA-00001unique constraint (string.string) violated

Your own TOP 20 Oracle errors
ORA-02261such unique or primary key already exists in the table