Re: database market share 2003

From: Mark A <ma_at_switchboard.net>
Date: Fri, 4 Jun 2004 16:43:35 -0600
Message-ID: <7W6wc.54$5Z4.42447@news.uswest.net>

> these are 3 different code bases, still not fully compatible at the
> DML level, much less DDL. is anyone at IBM willing to assert that they
> are now from 1 code base?

They are not the same code base.

DB2/400 is one code base (Oracle doesn't support that platform)
DB2 for Linux, UNIX, and Windows is another code base
DB2 for OS/390 and z/OS is another code base (Oracle has a product on this platform, but it performs poorly compared to DB2 - because it shares the codebase of its other products, and most customers hardly ever use it even if it is installed).

So among these three platform groups, Oracle is only widely used on one of them (Linux, UNIX ,and Windows) where DB2 does have the same codebase. Also note that DB2 for Linux runs on IBM mainframes (same code base as DB2 for Linux, UNIX, and Windows). Received on Fri Jun 04 2004 - 17:43:35 CDT