title: Mysql how to get First Monday of given year and Month
body: <p>How to get the first monday of given year month.</p>
  
  <pre><code>SET @YearMonth:= '201304';
  
  Result:
  2013-04-01 (For April)
  2013-11-04 (For November)
  </code></pre>
  
  <p>Thanks in advance.</p>