Many people believe the most important use of servlets is to interact with databases.
Its certainly a very important use. In this module, you will see how to do that.
The prerequisites for this course call for you to know some SQL and to have seen JDBC code before. If dont have this knowledge, you
will need to take what you see here at face value. We are using a number of classes that are part of the standard Java library for working
with SQL, and you will learn how to use them for specific tasks. We will not explain every facet and detail of these classes and how they
When you finish this module, you will be able to:
Explain how Java, servlets, JDBC, ODBC, and database software work together
Set up an ODBC data source as a System DSN
Decide whether it is appropriate to connect to your database in init() or getPost()