Category: Old Stuff

April 10

We had some nice KC-DBA (expertise meetings) meetings in 2005. One of them was about virtual machines (VMware basically). To show how you could use virtual machine technology to implement an environment which would be almost undoable nowadays to realize, a virtual machine environment was demonstrated with Oracle 4.1 installed based on DOS. Thanks to Carel Jan Engel (one the infamous OAKTable guys) – i was able to build a default Oracle 4.1 database environment with all the goodies like the UFI (the user friendly interface).

The old DOS disks where recovered from some boxes on my attic, so with some extra effort, the installation wasn’t so difficult (i still remembered how to do the ansi.sys, autoexec.bat and config.sys upper and lower memory stuff ) All in all it was good fun. 🙂

Oracle 4.1 - Creation of the Demo Database

Strange enough you need(ed) the first oracle floppy in the floppy disk to start the database. I can not remember this from my Oracle 6 days.

May 12

Yesterday i was reading nice discussions on Asktom about the dual table. Afterwards somehow a “undocumented” Oracle feature popped into my mind again. Last time I used is at least in those days I worked with Oracle 7.0 /7.1. So I tried It out on Oracle database version 10.1.0.4 and it still works…

😉 Maybe it is (still) usefull to someone. See hence my example: