Appendix J. The Other RDBMSs
This book concentrates on three big vendors — Oracle, IBM, and Microsoft — but, of course, they are not the only providers of relational database software. We intentionally tried to steer away from the "holy wars" of the RDBMS vendors, and we hope we've succeeded.
There are virtually dozens of lesser-known RDBMS packages out there, and their merits are not always reflected by their market share. Most of them compare very favorably with the "big three" RDBMS vendors in terms of costs (some of these are distributed free of charge, under GPL, LGPL, MPL, BSD, IPL, and IDPL licensing; BSD being the least restrictive license of these), and even performance. Some of the most popular are listed in Table J-1; the list is by no means complete.
Table J.1. RDBMS Software
RDBMS | SQL | Operating System | Licensing | Vendor Info |
|---|---|---|---|---|
ADABAS D | 92/99 | Unix, Linux, Windows, mainframe | Freeware/Proprietary | Software AG |
Alpha Five v8 | 92 | Windows | Proprietary | Alpha Software |
Derby (Java DB; Cloudscape) v10 | 92/99 | Any platform for which JVM is implemented | Open Source (Apache 2.0 license) | IBM |
Empress | 92 | Sun Solaris, HP UX, IBM AIX, True64 Unix IRIX, Linux, FreeBSD, Unicos, Microsoft Windows NT/2000/XP LynxOS, QNX, RTU, Bluecat, RTLinux | Proprietary | Empress Software Inc. |
eXtremeDB | 92 | Any platform for which JVM is implemented | Proprietary/Open Source (Prest) |
|
FirstBase v9.3.2 | 92 | Unix, Linux | Open Source (GNU GPL) | FirstBase Software |
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