Getting Started with WebSphere Application Server
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Appendix B – Up and running <strong>with</strong> DB2 221<br />
Figure B.2 provides an overview of the different DB2 data server editions that are<br />
available.<br />
DB2 Enterprise Edition<br />
DB2 Workgroup Edition<br />
DB2 Express Edition<br />
DB2 Express-C<br />
Extra<br />
Extra<br />
Extra<br />
+ + + functionality functionality functionality<br />
Figure B.2 - DB2 <strong>Server</strong> Packaging<br />
As shown in Figure B.2, all DB2 server editions are built one on top of the other. DB2<br />
Express-C is a free version of DB2, and it is the core component of all DB2 products. When<br />
additional functionality is added to DB2 Express-C, it becomes DB2 Express. Additional<br />
functionality added to DB2 Express, becomes DB2 Workgroup, and so on. Figure B.2<br />
illustrates why it is so easy to upgrade from DB2 Express-C to any other DB2 server should<br />
you need to in the future: All DB2 servers editions are built based on DB2 Express-C.<br />
Also applications built for DB2 Express-C are applicable on other DB2 Editions as well.<br />
Your applications will function <strong>with</strong>out any modifications required!<br />
B.2.2 DB2 Clients and Drivers<br />
When you install a DB2 server, a DB2 client component is also installed. If you only need<br />
to install a client, you can install either the IBM Data <strong>Server</strong> Client, or the IBM Data <strong>Server</strong><br />
Runtime Client. Figure B.3 illustrates these two clients.
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