title: mysql - union tables by unique field
body: <p>I have two tables with the same structure:</p>
  
  <pre><code>id name
  1 Merry
  2 Mike
  
  and
  
  id name
  1 Mike
  2 Alis
  </code></pre>
  
  <p>I need to union second table to first with keeping unique names, so that result is:</p>
  
  <pre><code>id name
  1 Merry
  2 Mike
  3 Alis
  </code></pre>
  
  <p>Is it possible to do this with MySQL query, without using php script?</p>