The JDBC<sup><font size=-2>TM</font></sup> 4.2 API includes both
the <code>java.sql</code> package, referred to as the JDBC core API,
and the <code>javax.sql</code> package, referred to as the JDBC Optional
Package API. This complete JDBC API
is included in the Java<sup><font size=-2>TM</font></sup>  
Standard Edition (Java SE<sup><font size=-2>TM</font></sup>), version 7.
The <code>javax.sql</code> package extends the functionality of the JDBC API 
from a client-side API to a server-side API, and it is an 