title: how to combine two numeric fields?
body: <p>How to combine two int columns into one.</p>
  
  <pre><code>My table1 is as follows:
  name   adress1  adress2
  hhh    1        2
  www    2        3
  </code></pre>
  
  <p>I want result as follows:</p>
  
  <pre><code>name columnz
  hhh  12
  www  23
  </code></pre>