title: My SQL Update Statement updates even if the value is the same
body: <p>I want to update a column value. But my Update procedure statement updates even the value of the this column is the same.</p>
  
  <pre><code>UPDATE TableName 
  SET   ColumName=@ParameterName   
  WHERE Id=@ParameterId
  </code></pre>
  
  <p>Any Idea?</p>
  
  <p>Thank you.</p>