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2. Ingres

In this section the Ingres II Relational Database Management System is introduced and you come to know how to get it.

2.1. University Ingres and Commercial Ingres

Let us start with an important fact: there are two different types of Ingres. The original one, which was designed and developed in the seventies by a research group led by Michael Stonebraker at the University of California, Berkeley, was the first open source relational database management system: it was free to use and distribute, source code included. In fact, it is still free software, although its development stopped in 1989. Its last version (version 8.9) made it into some Linux distributions as well. If you are interested in it, you can download it from, say, the SuSE site. The packages are:

In 1979, with the foundation of Relational Technology, the career of Commercial Ingres started. Since 1995 it has been distributed by Computer Associates. Its latest version is Ingres II 2.0. This HOWTO deals with the installation of this type of Ingres.

2.2. The Software Development Kit

Ingres, being commercial software, is not free to use. However, CA, like most RDBMS vendors, offers a free version of it (the Software Development Kit) to everyone who is interested in learning Ingres. The SDK has two variants, one for Windows NT and one for Linux. These variants are not quite the same as far as the included components are concerned. Obviously, we are engaged in installing the SDK for Linux here. This contains the following elements:

You can order a free copy of the Ingres SDK CD on http://www.cai.com/registration/cd_ingres.htm.

Remember that you are not allowed to use the SDK in a business environment. It is for evaluating Ingres and prototyping applications only.

The SDK CD contains both the Windows NT and the Linux versions of the Software Development Kit. You can find the Linux files in the following directories:

Do not forget to read the Readme file in the root directory on the CD.

2.3. The Beta Version

The freshest beta version of the SDK can always be downloaded from http://www.cai.com/products/betas/ingres_linux/ingres_linux.htm.

Note

At the time of writing, the version of the downloadable beta is 2.5. The next revision of the HOWTO will cover the installation of this version, too. The 2.0 beta is still available on ftp://ftp.cai.com/pub/marketing/ingres/ingresII9808libc6.tar.

2.4. The Ingres II Full Edition

In February 2000 Computer Associates announced the general availability of Ingres II 2.0 for Linux. Besides the components found in the SDK, the full edition contains more modules, such as:

The CD, besides the /doc and /int_lnx directories that are common with the SDK, contains install.sh, the general Ingres installer and its files. More on install.sh later, in subsection Starting the Installation Program.

2.5. The Unicenter TNG Framework

At last, let me note that the Linux version of CA's Unicenter TNG Framework also includes Ingres as its embedded database management system. For this reason, knowing Ingres may come in handy when using Unicenter, too. You can order a free Unicenter TNG Framework CD on




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