title: How to track the column value changes
body: <p>How can I infer that a particular row in a table has been modified, how to find the set of columns I prefer is been modified.  </p>
  
  <p>eg: </p>
  
  <pre><code>CREATE TABLE #TEMP
  (
      RollID INT,
      Name NVARCHAR(100),
      Class NVARCHAR(100),
      age  INT,
      Address NVARCHAR(200)
  )
  </code></pre>
  
  <p>In this case I'm interested to note whether the <code>(Name,Class)</code> has been modified</p>