title: Difference between DECIMAL and NUMERIC
body: <p>What's the difference between the SQL datatype <code>NUMERIC</code> and <code>DECIMAL</code> ?
  If databases treat these differently, I'd like to know how for at least:</p>
  
  <ul>
  <li>SQL Server</li>
  <li>Oracle</li>
  <li>Db/2</li>
  <li>MySQL</li>
  <li>PostgreSQL</li>
  </ul>
  
  <p>Furthermore, are there any differences in how database drivers interpret these types?</p>