Failed to parse SQL Query - External Tables [Apex 4.0.2]

Greetings experts -
Has anyone encountered errors when creating a report in Apex that sources from an external table within the database? I'm using the 4.0.2 version that is packaged with the 11g XE edition on 64bit CentOS.
For example, I might run:
SELECT NULL LINK,
COL1 LABEL,
COL2 VALUE
FROM MYTAB;
Where MYTAB is an external table sitting on top of a comma-separated file. When I go to create the page, I'm prompted with the "Failed to parse SQL" dialogue.
I noticed that if I did CTAS on the external table, and referenced the CTAS table, my page ran without problem!
Any ideas? Is this a known "limitation" of Apex?
Thanks,
CJ

Chiedu,
Please try removing all declarative validations on this tabular form, and see if it works as expected then. There are some limitations on the type of views and joins that are supported by tabular forms when using the new declarative validations, i.e. you'll need a key preserved table in your view or join.
Regards,
Marc

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Hello
I have a serious problem when trying to view the content of external tables under Oracle 10R2 in Spanish
Steps to perform:
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jpadron_uy wrote:
ERROR en línea 1:
ORA-29913: error al ejecutar la llamada de ODCIEXTTABLEOPEN
ORA-29400: error de cartucho de datos
KUP-00552: internal XAD package failed to load
ORA-06512: en "SYS.ORACLE_LOADER", línea 19Hola!
Let's go through errors you posted:
First error (ORA-29913) indicating error occurs when Oracle tryed to access external table.
Then ORA-29400 says that error has occurred in a data cartridge external procedure.
And then finally KUP-00552 - an error was encountered while attempting to initialize the XAD package.
So did you check state of the XAD package in that database?
Also, please post code you used in steps 4. and 7.
HTH

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Failed to parse SQL Query - External Tables [Apex 4.0.2]

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