title: How do I update an android sqlite database column value to null using ContentValues?
body: <p>For example, I want to do the following on a database update.</p>
  
  <p>Is there a constant I can use instead of <code>null</code>, which won't compile if I use it like:</p>
  
  
  
  <pre class="lang-java prettyprint-override"><code>ContentValues args = new ContentValues();
  args.put(KEY_RISK_AMOUNT, null); // what constant do I use instead of null?
  </code></pre>