Network-Protocol All-Java Drivers

Type 3 drivers are completely written in Java. They translate JDBC calls into a database-independent network protocol which is in turn translated to a DBMS protocol by middleware on a network server.

This type of driver can thus connect many Java clients to many different databases. The specific protocol used depends on the vendor.

Type 3 drivers are the most flexible since they do not require any driver software resident on client systems and can allow a single driver to provide access to multiple databases.