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External Procedure Call From Application Fails With "ORA-03001: Unimplemented Feature" (Doc ID 814728.1)

Last updated on OCTOBER 06, 2022

Applies to:

Oracle Data Provider for .NET - Version and later
Oracle ODBC Driver - Version and later
Oracle Provider for OLE DB - Version and later
Information in this document applies to any platform.
This problem can occur on any platform.


An application using the Oracle ODBC driver or another data access driver such as Oracle Data Provider for .NET or ORAOLEDB calls into a Package or Procedure which internally makes a call to an external library function via EXTPROC.

The call fails with the following error

   ORA-3001 unimplemented feature

The external procedure can be called by other applications such as SQL*Plus and work fine.


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