Resource resource = CDOAeess.getDefaultResource(cdoTransaction);
                
                CDOQuery cdoq = cdoTransaction.createQuery("sql", "select * from B where cdo_id = '" + id + "' and cdo_revised = 0 and cdo_version >= 0");
                B b = cdoq.getResultValue(B.class);
              
                cdoq = cdoTransaction.createQuery("sql", "select cdo_container from B where cdo_id = '" + id + "' and cdo_revised = 0 and cdo_version >= 0");
                A a = cdoq.getResultValue(A.class);
                                
                a.getOwnedB().remove(b); 
                resource.getContents().remove(b);  
                
                return Response.status(Status.OK).build();
            }