Oracle Message ORA-13400 - duplicate entry for string in USER_SDO_GEOR_SYSDATA view

ERRORduplicate entry for string in USER_SDO_GEOR_SYSDATA view
CAUSEThe current operation caused a duplicate RASTER_DATA_TABLE and RASTER_ID combination to be inserted into the USER_SDO_GEOR_SYSDATA view.
ACTIONEnsure that the RASTER_DATA_TABLE and RASTER_ID combination to be inserted into the USER_SDO_GEOR_SYSDATA view is unique.