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Understanding DB2 for i and the IBM DB2 Product Family

by Kent Milligan

Last updated: 2010-07-14

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© Copyright IBM Corporation, 2008. All Rights Reserved.
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This white paper discusses the IBM DB2 family of products. The reader will learn about the history and the IBM goals for development, compatibility and standardization of these offerings. This white paper also focuses on the functional differences between the DB2 for i product and its two sister offerings.
An integrated, fully relational database has shipped with every System i machine as far back as the inception of the IBM AS/400® systems in the late 1980s. The DB2 branding for this integrated database was first adopted in 1995 with the product name, DB2/400. After several releases which advanced the functionality of the database, the DB2 Universal Database™ branding was added and the product named changed to DB2® UDB for AS/400. The product name was later changed to DB2® UDB for iSeries when the hardware platform was renamed. DB2 for i5/OS is the current product name. DB2 for i5/OS delivers advanced SQL functionality and performance to customers and software developers. While the product has evolved through name changes and enhancements, DB2 for i5/OS is still known for its integration and ease of use that have attracted and spoiled IBM System i customers for years.