title: Select going wrong
body: <p>I need to generate this output from this db table</p>
  <p>Expected output: Neil</p>
  <p>-- Example case create statement:</p>
  <pre><code>CREATE TABLE poll 
  (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR(30) NOT NULL,
      answer CHAR(1)
  );
  
  INSERT INTO poll (id, name, answer) VALUES (1, 'Neil', NULL);
  INSERT INTO poll (id, name, answer) VALUES (2, 'Nina', 'Y');
  INSERT INTO poll (id, name, answer) VALUES (3, 'Walt', 'N');
  </code></pre>
  <p>I tried to obtain the results using this SQL query, but this does not work:</p>
  <pre><code>SELECT * 
  FROM poll 
  WHERE (name LIKE 'N%') 
    AND (answer &lt;&gt; 'N' OR answer &lt;&gt; 'Y');
  </code></pre>
  <p>What did I do wrong?</p>
  <p>Thanks for the support!</p>