title: Combine two DateTimes
body: <p>In SQL I have the following code fragment :</p>
  
  <pre><code>DECLARE 
  @DayPart as datetime,
  @TimePart as datetime   
  
  SET @DayPart='2012-01-10 00:00:00.000'
  SET @TimePart='2012-08-30 15:41:10.403'
  </code></pre>
  
  <p>Now I Need :</p>
  
  <pre><code> '2012-01-10 15:41:10.403'
  </code></pre>
  
  <p>How can I get it?</p>