title: Questions every good Database/SQL developer should be able to answer
body: <p>I was going through <a href="https://stackoverflow.com/questions/365489/questions-every-good-net-developer-should-be-able-to-answer">Questions every good .Net developer should be able to answer</a> and was highly impressed with the content and approach of this question and so in the same spirit, I am asking this question for Database/SQL Developer.</p>
  
  <p><strong>What questions</strong> do you think should a good <strong>Database/SQL programmer be able to respond to?</strong></p>