title: How do I select from a table rows with no nulls?
body: <p>In KDB, I have a query of the form:</p>
  <pre><code>select from t where not null a, not null b
  </code></pre>
  <p>Is it possible to select rows that contain no nulls, rather than specifying <code>a</code> and <code>b</code>?</p>