title: Non trivial functional dependency in DBMS
body: <p>What is the non trivial functional dependency in the following table?</p>
  <pre><code>A.            B.              C
  1             1               1
  1             1               0
  2             3               2
  2             3               2
  </code></pre>
  <p>Could you also explain the basic concept behind it?</p>