I have not touched a VMS system for 20 odd years. One of the things I did was to shrink the size of the undo tablespace from 2770 MB to 1024 MB. When I issue the VMS command show device/full <device_name> the number of free blocks is no different than before. What needs to be done to get the space released. Ian MacGregor SLAC National Accelerator Center -- //www.freelists.org/webpage/oracle-l