If it possible tell how to create in JDeveloper or in tomcat.No need to use servelet or ANT or JSF only in pure JSP

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This article covers exactly what you want:

http://www.akadia.com/download/soug/tomcat/html/tomcat_apache.html

In summary,
1) Set up connectivity from Tomcat to the database.
2) Write the JSPs using the Tomcat / J2EE API to get a JDBC connection and use it.
3) Deploy the application and enjoy.

The AJAX work will probably be somewhat separate - JavaScript code for user interaction in the web page, which may invoke Servlets in order to pull data from the database, or use other methods (e.g. CGI).

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