Using views in Oracle is a good way to access data via Mapguide/FDO,
but in order to be able to select a feature, it must have a primary key,
otherwise, selection will fail.
This is the SQL syntax to add a primary key on an Oracle View
alter viewadd constraint primary key ( ) disable novalidate;
Once the view has a primary key, selection becomes available.
Bruno
From the Mapguide Users Mailing list
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