Classloader and DB

http://javarevisited.blogspot.sg/2012/07/when-class-loading-initialization-java-example.html
http://javarevisited.blogspot.in/2012/12/how-classloader-works-in-java.html
http://javarevisited.blogspot.in/2011/08/classnotfoundexception-in-java-example.html
http://javarevisited.blogspot.in/2011/01/how-classpath-work-in-java.html

http://javarevisited.blogspot.in/2011/07/classnotfoundexception-vs.html

http://javarevisited.blogspot.sg/2011/11/static-keyword-method-variable-java.html

http://javarevisited.blogspot.sg/2011/06/noclassdeffounderror-exception-in.html
http://javarevisited.blogspot.in/2012/07/subquery-example-in-sql-correlated-vs.html
http://www.orafaq.com/faq/difference_between_truncate_delete_and_drop_commands