Architecture

Free Webinar – How Oracle Works!

Next Tuesday (19th September) I am doing a free webinar for ProHuddle. It lasts under an hour and is an introduction to how some of the core parts of the Oracle RDBMS work, I call it “The Heart of Oracle: How the Core RDBMS Works”. Yes, I try and explain all of the core Oracle RDBMS in under an hour! I’m told I just about manage it. You can see details of the event and register for it here. I’ve done this talk a few times at conferences now and I really like doing it, partly as it seems to go down so well and people give me good feedback about it (and occasionally bad feedback, but I’ll get on to that).

Friday Philosophy – Sometime The Solution Has To Not Only Match The Problem But Also…

…The People!

When you design a system for end users, a good designer/developer considers the “UX” – User eXperience. The system has to be acceptable to the end user. This is often expressed as “easy to use” or “fun” or “Quick”. But in reality, the system can fail in all sort of ways but still be a success if the end user gets something out of using it. I’ve said it before and I’ll say it again and again until I give up on this career. In my opinion:

User Acceptance is the number one aim of any I.T. system.

Friday Philosophy – “Technical Debt” is a Poor Term. Try “Technical Burden”?

Recently my friend Sabine Heimsath asked a few of us native English speakers what the opposite of “technical debt” was. My immediate reaction was to say:

I’d say (sarcastically) “proper development” or “decent designer” or even “what we did 25 bloody years ago when we were allowed to take pride in the software we created!”

But my next comment was less reactive and more considered. And that was to say that I did not like the phrase “Technical Debt”:

A debt is when you owe something to someone, to be paid back. You do not owe anything to someone when you build poor systems, you are actually creating a “technical burden” – something those in the future will need to live with and may eventually have to sort out. Those who created the bad app or design will probably not be the ones fixing it – as in paying the debt.

Friday Philosophy – When Tech Fails to Deliver, is it Always a Problem?

I nipped out to the local supermarket this lunch time to get stuff. I use one of those self-use barcode scanners to log all the goods I put in my basket (apart from the bottle of whisky I was stealing). I then go to the payment machine, scan the “finish shopping” barcode and try to pay. I can’t pay.

Why oh Why Do We Still Not Have a Fast Bulk “SQL*Unloader” Facility?

Way back in 2004 I was working at the UK side of the Human Genome project. We were creating a massive store of DNA sequences in an Oracle database (this was one of two world-wide available stores of this information, for free & open use by anyone {* see note!}). The database was, for back then, enormous at 5-6TB. And we knew it would approx double every 12 months (and it did, it was 28TB when I had to migrate it to Oracle 10 in 2006, over 40TB 6 months later and grew to half a petabyte before it was moved to another organisation). And were contemplating storing similar massive volumes in Oracle – Protein, RNA and other sequence stores, huge numbers of cytological images (sorry, microscope slides).

How you should or shouldn’t design, program for, a performing database environment

My good friend Toon Koppelaars created a cool and very interesting, learning video about how…

Understanding CPU on AIX Power SMT Systems

This month I worked with a chicagoland company to improve performance for eBusiness Suite on AIX. I’ve worked with databases running on AIX a number of times over the years now. Nevertheless, I got thrown for a loop this week.

TLDR: In the end, it came down to a fundamental change in resource accounting that IBM introduced with the POWER7 processor in 2010. The bottom line is twofold:

Understanding CPU on AIX Power SMT Systems

This month I worked with a chicagoland company to improve performance for eBusiness Suite on AIX. I’ve worked with databases running on AIX a number of times over the years now. Nevertheless, I got thrown for a loop this week.

TLDR: In the end, it came down to a fundamental change in resource accounting that IBM introduced with the POWER7 processor in 2010. The bottom line is twofold:

Understanding CPU on AIX Power SMT Systems

This month I worked with a chicagoland company to improve performance for eBusiness Suite on AIX. I’ve worked with databases running on AIX a number of times over the years now. Nevertheless, I got thrown for a loop this week.

TLDR: In the end, it came down to a fundamental change in resource accounting that IBM introduced with the POWER7 processor in 2010. The bottom line is twofold:

Friday Philosophy – The Singular Stupidity of the Sole Solution

I don’t like the ‘C’ word, it’s offensive to some people and gets used way too much. I mean “cloud” of course. Across all of I.T. it’s the current big trend that every PR department seems to feel the need to trump about and it’s what all Marketing people are trying to sell us. I’m not just talking Oracle here either, read any computing, technical or scientific magazine and there are the usual adds by big I.T. companies like IBM and they are all pushing clouds (and the best way to push a cloud is with hot air). And we’ve been here before so many times. It’s not so much the current technical trend that is the problem, it is the obsession with the one architecture as the solution to fit all requirements that is damaging.