Ravi Kiran Pattu wrote:
For Select statements does does a EJB Layer is necessary ??
Ravi Kiran,
First you need to understand what are the services provided by Container.
Then if your application needs those services, you will go for that. Its just not JDBC.
You can make JDBC calls from EJB(session beans) also.
Using Entity beans is not adviced for just retrival of data.
When working with JMS, MDB makes sence.