Lotus Notes: NotesSQL Restrictions

Does anybody know the restrictions of the NotesSQL API (Domino ODBC API)? E.g. can I read mail at开发者_StackOverflow中文版tachments with this API? Or should the domino.dll the prefered way to access NSF files (in the .NET World)?

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The NotesSQL API uses views to create its pseudo-tables. As an attachment is stored as an RTF field and RTF-fields can't be displayed in views, I think this is not possible.

I'm not completely up-to-date, my last experience with NotesSQL was with 6.5. But back then it was not very stable when querying large datasets so we dropped it quite fast for production use.