title: How do I calculate tables size in Oracle
body: <p>Being used to (and potentially spoiled by) <code>MSSQL</code>, I'm wondering how I can get at tables size in <code>Oracle</code> 10g.
  I have googled it so I'm now aware that I may not have as easy an option as <code>sp_spaceused</code>. Still the potential answers I got are most of the time outdated or don't work. Probably because I'm no DBA on the schema I'm working with.</p>
  <p>Would anyone have solutions and or recommendations?</p>