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Export Fails With Internal Error ORA-600 [unable to load XDB library] (Doc ID 356424.1)

Last updated on AUGUST 04, 2018

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A user level export started with parameters:

#> exp userid=<username> file=<dmp file> owner=<schema_name> log=<log file name> consistent=y

fails with errors:

EXP-00056: ORACLE error 600 encountered
ORA-00600: internal error code, arguments: [unable to load XDB library], [], [], [], [], [], [], []
ORA-06512: at "SYS.DBMS_METADATA", line 1535
ORA-06512: at "SYS.DBMS_METADATA", line 1572
ORA-06512: at "SYS.DBMS_METADATA", line 1889
ORA-06512: at "SYS.DBMS_METADATA", line 3734
ORA-06512: at "SYS.DBMS_METADATA", line 3716
ORA-06512: at line 1
EXP-00000: Export terminated unsuccessfully

Verify the ORA-600 trace file which will show something similar to:

ORA-00600: internal error code, arguments: [unable to load XDB library], [], [], [], [], [], [], []
Current SQL statement for this session:
SELECT /*+rule*/ SYS_XMLGEN(VALUE(KU$), XMLFORMAT.createFormat2('XMLSCHEMA_T', '7')), 0 FROM


This may be encountered after recently applying a patch/patchset.


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