DB2 comes in the four editions namely DB2 Express, DB2 Workgroup Server Edition, DB2 Enterprise Server Edition and DB2 Personal Edition. All four editions provide the same full-function database management system, but they differ from each other in terms of connectivity options, licensing agreements and additional function.
There are three main DB2 products, which are as follows:
DB2 Universal Database (UDB): DB2 UDB is designed for use in a variety of purposes and in a variety of environments.
DB2 Connect: It provides the ability to access a host database with Distributed Relational Database Architecture (DRDA). There are two versions of DB2 Connect, namely DB2 Connect Personal Edition and DB2 Connect Enterprise Edition.