PL/SQL developer just doesn't show the tablespace information at all for I/O tables. Enterprise Manager does, but PL/SQL Developer doesn't. This appears to be a bug/limitation in this tool. When will this be resolved?
I have a view that was created with column aliases. When I view the source of this view in PL/SQL Developer, I don't see the column aliases. However, the view does return the aliased columns when data is selected. This is very confusing when using the tool.
Example of Real Source for View...