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DB2® Universal Database™ v8 Application Development Certification Guide, 2nd Edition by Michael Kyprianou, Steve Sanyal, Kevin Gashyna, David Martineau

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DB2 UDB Connect Products

In prior versions of DB2, the DB2 Connect product was used to connect to Distributed Relational Database Architecture (DRDA) database servers. DRDA is an open standard, high-level protocol for database-related communications, and prior to DB2 UDB v8, the DRDA database servers of the DB2 world were DB2 host databases running on OS/390 (z-Series), AS/400 (i-Series), VM, and VSE. DB2 on common platforms such as Windows and UNIX used a proprietary protocol known as DB2RA.

In DB2 v8, all DB2 servers and clients use DRDA for communications, thereby adhering to a common standard. DB2 clients, however, are not licensed to access DB2 host databases directly, thus either DB2 ESE server or DB2 Connect must still be used to connect ...

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