Make sure you have a JDBC driver for your database before you try to create a database connection. Some common JDBC drivers include the Oracle Thin JDBC driver, the Oracle Java Driver, and the i‑net JDBC drivers for Microsoft SQL Server.

Database system vendors such as Oracle often include drivers with their systems. You can also purchase drivers from third-party vendors. For example, you can obtain a JDBC driver for Microsoft SQL Server from i‑net software at www.inetsoftware.de/products/jdbc/.

Sun also provides a searchable database of JDBC drivers and their vendors on its website at http://developers.sun.com/product/jdbc/drivers.