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Unable to Export Large Dataset to any Format (Doc ID 731078.1)

Last updated on FEBRUARY 23, 2021

Applies to:

Oracle SQL Developer - Version 1.5 to 2.1 [Release 1.5.0 to APEX 2.1]
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Information in this document applies to any platform.


Run a query to retrieve large data set. Now try to export the output to any format (XML, CSV, XLS, etc.).

Will result in the following error:

ORA-00918: column ambiguously defined



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