title: Oracle truncate with / without drop storage
body: <p>Tried to get a bit more info on this, but figured I'd just ask.... I attempted to perform a table truncate on Oracle 10g with the drop storage, however the results aren't entirely what I was expecting.  </p>
  
  <p>Basically, the table in question had over 30 million records and over 3Gb allocated for it, but somehow the space allocated for it still appears to be used.  Is there a way to actually drop the allocated space used, or am I going about it the wrong way?</p>
  
  <p>===EDIT====</p>
  
  <p>My bad...I was referring to physical disk space, in terms of the datafile size...  At the moment our export / backup amounted to about 13GB, so the intention here was to shrink the actual file in the process of truncating the data when we export to a file for backup.</p>