title: Hibernate : dynamic-update dynamic-insert - Performance Effects
body: <p>Using dynamic-update or dynamic-insert has positive, though generally slight only on performance, as also mentioned by <a href="http://www.mkyong.com/hibernate/hibernate-dynamic-update-attribute-example/" rel="noreferrer">http://www.mkyong.com/hibernate/hibernate-dynamic-update-attribute-example/</a></p>
  
  <p>But the reference documentation mentions that this could have negative performance effects also as mentioned below in <a href="http://docs.jboss.org/hibernate/core/3.3/reference/en/html/mapping.html#mapping-declaration-class" rel="noreferrer">http://docs.jboss.org/hibernate/core/3.3/reference/en/html/mapping.html#mapping-declaration-class</a> :  </p>
  
  <blockquote>
    <p>Although these settings can increase
    performance in some cases, they can
    actually decrease performance in
    others.</p>
  </blockquote>
  
  <p>Can anybody please suggest some example/scenario mentioning negative performance impact of the same?</p>