title: Count NULL or whitespace fields in SQLite
body: <p>I want to count how many <code>NULLs</code> and whitespaces contains a <code>Table</code> in <code>SQLite</code>?</p>
  
  <p>The query below works for <code>NULL or empty</code> case, but how to handle whitespaces? Any ideas?</p>
  
  <pre><code>SELECT count(*) 
    FROM Table 
   WHERE Column IS NULL 
         OR Column = ''; // fine for 'NULL or empty'
  </code></pre>