Select the text to all_views returns an empty string

My application allows the user to choose between the data provider for ODBC and the data provider for Oracle. (ODP)

When you use the ODBC statement:

Select the text in all_views where view_name = 'MYVIEW '.

Returns the string expected.

If I connect via ODP however it returns an empty string.
(If I use "Select *" it tells me that the text_length is 154 in this case-, so there are certainly available text.)

I think it has something to do with the fact that the data type is long.
In both cases I recover data with rdr. GetChars(), that should work.

If I use the dbms_metadata.get_ddl instead of this function, it returns the string (probably because the return type is LONG)
Unfortunately this function works only for views in the current schema, while the original works of Select for any view.
(And I don't know what version of Oracle, this feature has been added-I need to support older versions too).

Similarly, if I use one of the XML functions to retrieve the text in XML format it works fine.
(Again it is probably returned as a VARCHAR2 instead of a LONG.)

The strange thing is that when I created my own table containing a column LONG, I've been able to load and retrieve data without any problem.

The problem seems to be specific to this column in all_views.

Anyone know a solution to this?

Thank you
Mike

Did you put InitialLONGFetchSize property appropriately on your OracleCommand object? See if this property does the trick for you?

Tags: Database

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