Help dropping constraints

Hi,
I have about 12 constraints in my user_constraints for tables that no longer exist. So how do I remove them?
The constraints have all adopted weird names such as 'BIN$2qcYHsnhR7eVViBGHj+57g==$0' and it shows that they exist on similarly weird tables such as 'BIN$2gdcO6pUQ3OeA+QJuJ0xWA==$0'.
Unsurprisingly, the following sql does not work:
alter table BIN$2gdcO6pUQ3OeA+QJuJ0xWA==$0 drop constraint BIN$2qcYHsnhR7eVViBGHj+57g==$0;
thanks,
Martin

Martin,
They are in recyclebin, so you need to purge recylebin
purge dba_recyclebin;
or
purge user_recyclebin;Regards
Edited by: OrionNet on Apr 22, 2009 8:26 PM

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