title: SQLite: Combining 'WHERE' conditions
body: <p>A question for my general understanding: 
  If I have:</p>
  
  <pre><code>SELECT X, Y, Z FROM MyTable
  </code></pre>
  
  <p>and I want only entries where none of the values are null I have to use</p>
  
  <pre><code>SELECT X, Y, Z FROM MyTable 
  WHERE X IS NOT NULL AND Y IS NOT NULL AND Z IS NOT NULL
  </code></pre>
  
  <p>Is there a shorter option? Something like </p>
  
  <pre><code>SELECT X, Y, Z FROM MyTable 
  WHERE X, Y, Z IS NOT NULL
  </code></pre>
  
  <p>This is just a short example, but I guess in queries with many conditions and requests something like this could make the query string much shorter and more readable.</p>