Suggesitions required for JDBC in Web Dynpro

Hi SDN,
I am working on Web Dynpro project, till now we are working with SAP R/3 as backend database.
Now we need to store the data in sql server along with SAP R/3 with the same project.
Our people suggested to use EJBs.
I need to know how to create EJB for web dynpro if any specification.
how to deploy it in sneak previw
How to call that EJB in the application.
I have sneak preview in sys1,
Sql server in sys 5,
SAP R/3 in sys2,
NWDS in sys-j2e.
please suggest any PDF exists.
help me in this regard.
Thanks in Advance.
Sai.K.K

Go through the following posts.
https://forums.sdn.sap.com/click.jspa?searchID=851468&messageID=1486826
https://forums.sdn.sap.com/click.jspa?searchID=851468&messageID=1531194
https://forums.sdn.sap.com/click.jspa?searchID=851468&messageID=2393486
I have submitted JavaBeanGenerator sample code which will create  a bean out of the SAPDB tables.Please find the link below.
https://www.sdn.sap.com/irj/sdn/softwaredownload?download=/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/business_packages/a1-8-4/simple_javabean_generator_project.zip
Regards, Anilkumar

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