Well, I want to clean up my RBS tablespace. It's big, and it's full, and it doesen't get freed after shutdown/startup. It is very fragmented too.
Calling "alter tablespace RBS temporary" got me only "ORA-01662: tablespace 'RBS' is non-empty and cannot be made temporary". I definitely agree it is not empty. I can see it. It is 95.5% used. And it is as big as the half of the database! OK, it is not problem being so big. But why so full even right after startup?
How can I clean up my RBS tablespace?