title: Convert Number without leading zero for using in C#
body: <p>I have a Oracle-view which gives me those data:</p>
  
  <pre><code>DATUM              STUNDE LAUFZEIT
  -------------- ---------- -----------
  30.10.14 00:00         11  ,433333333
  </code></pre>
  
  <p>The column <code>LAUFZEIT</code> is declared as <code>NUMBER</code>. Which format to I need to convert the column to get <code>0,433333333</code> or rounded to <code>0,4</code>?</p>
  
  <p><img src="https://i.stack.imgur.com/Qvdw5.png" alt="enter image description here"></p>
  
  <p>I already tried some types like <code>Convert.ToSingle(reader.GetValue(2))</code> but always get a error like</p>
  
  <blockquote>
    <p>System.OverflowException: Arithmetic operation resulted in an overflow </p>
  </blockquote>
  
  <p>Thanks!</p>