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This article shows you how to solve the errors caused by the ORA-20011 KUP-11024 external table, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Check the alert log and see errors you haven't seen before.

It literally means: an error occurred while GATHER_STATS_JOB was collecting statistics.

The error occurs when calling out the ODCIEXTTABLEOPEN; the external table can only be called through the data pump.

Sat Jun 13 14:07:30 2015

DBMS_STATS: GATHER_STATS_JOB encountered errors. Check the trace file.

Errors in file / opt/oracle/diag/rdbms/TDB/TDB/trace/TDB_j000_12961.trc:

ORA-20011: Approximate NDV failed: ORA-29913: error in executing ODCIEXTTABLEOPEN callout

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