JDBC drivers exist for many current databases, with more coming all the time. All you need is the ODBC part, which is widely available. You can even use textfiles as your database if your drivers were installed correctly. Furthermore, some IDE products on the market are delivered with small but powerful SQL database systems. Anywhere from Sybase .
All fields hold strings.
The database itself is called Persons . Once you have learned the basic ideas presented here, you can easily write programs that handle much more complicated schemas. If you're coming from a relational background, you'll be pleased with this applet's simplicity. These methods are found in the class SqlPerson , which is an extension of an underlying Person class. These methods don't build entire SQL statements, they build some of the common subordinate clauses of SQL, which increases their utility.