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Archive for February, 2008

29 Feb

Farewell to CMG

Thirteen years ago tomorrow I joined a consultancy company called CMG. When I went for the interview I’d never heard of it but the interview process impressed me. Fortunately things worked out well and I’ve been with the company ever since. In 2003 we merged with another consultancy, Logica, to become LogicaCMG. Until Wednesday, when the name was reverted back to Logica.

This makes sense in many ways. More people had heard of Logica than had heard of CMG, although the separate companies had been of equivalent size. And it was a bit of a mouthful - even I had taken to calling us plain Logica. But it is a sad moment. CMG was a special sort of company; people define themselves by the fact that they worked for CMG, even if they left the company years ago. And that’s why several hundred ex-CMGers - because we are all ex-CMGers now - are descending on a pub in London to mark the passing of the name in the traditional CMG style. Cheers!

29 Feb

Index Compression Part IV (Packt Like Sardines In a Crushd Tin Box)

A great question by Brian Tkatch has convinced me there needs to be at least a Part IV in this particular mini-series. The basic question is what size does the column need to be for it to be effectively compressed ?
If a column is only just the one byte, then it can’t really be compressed […]

29 Feb

More sightseeing, then home…

I’ve got another morning of sightseeing, then I fly home this afternoon.
I’m going to write a post summing up my Vienna experience, but for now all I will say is I love Vienna. I spent the whole day walking round checking out the center of the city. Later in the day my dodgy knee felt […]

29 Feb

42

If you know of Douglas Adams you will know that the answer to life, the universe and everything is 42**.
In the case of Statspack, and AWR, 42 is my preferred answer to the question: “How long should I keep the snapshot data?”
One of the strengths of collecting snapshot data is that it makes it easy […]

28 Feb

java.lang.Exception: Exception in sending Request :: null

When accessing Enterprise Manager DB Control Console a couple of error messages display, right after providing the sys credentials, the console appears with a down arrow and at the header it says:java.lang.Exception: Exception in sending Request :: nul…

28 Feb

Two Quick and Simple Tips That Will Help You Write Better PL/SQL

When invoking a PL/SQL procedure or function, you can specify the value of its parameters using either positional, named, or mixed notation. Let’s review what each notation means and then demonstrate the best way to add new parameters to an existing subprogram without breaking existing code.

Consider this simple package as an example:

CREATE OR REPLACE PACKAGE […]

28 Feb

A thief disguised as a USERGROUP

Yesterday I got informed that the “Wordlwide SQL SERVER USERGROUP” has again added content from my blog to their site.
This is the second time already that this strange organization steals my posts and demands money from their “MEMBERS” to look at it. I had them remove my posts already in 2006.
This so call usergroup does not […]

27 Feb

Teaching mode off, holiday mode on…

I’ve just finished my second day of teaching Oracle PL/SQL Tuning. I’m now switching into holiday mode for a couple of days before returning to the UK.
Everything went well, but I’m sure over the next couple of days I’ll start to think about things I’ll do differently next time. It will be interesting to see […]

27 Feb

Learning Regular Expressions

From Eddie’s blog I got a link to 3 posts on Regular Expressions on OTN written by CD. Wonderful stuff. Check out.
Part 1
Part 2
Part 3
& Thanks CD…wonderful work buddy !

27 Feb

How the OFA Began, Part 2

I’m looking this moment at a pair of nicely bound light beige books called 1991 International Oracle User Week Proceedings, Volumes 1 and 2. Toon Koppelaars just mentioned to me a couple of days ago that his international speaking debut was at the same event, and sure enough, there’s his paper #808, right in Volume 2 with mine: “User Experiences with Oracle Server for OS/2.”

It’s fun remembering the Good Old Days before laptop PCs. But I’ll tell you what, it was a lot harder work back then trying to communicate. When I thumb to my paper #513 (29+1), the format reminds me that I used to use typesetting software called TeX (pronounced “tech,” with no x sound). TeX was written by Donald Knuth, who took a 15-year hiatus from his “proper” research in computer science to develop—at long last—a decent phototypesetter for people like me to use.

TeX was a superb and wonderful thing, and it still is. It has fallen aside in some environments including, unfortunately, my own, in favor of the so-called WYSIWYG editors, like Microsoft Word. I still can’t figure out how an application that makes you type Ctrl-Fn-Alt-; to get an em-dash gets to be called “WYSIWYG,” but, well, I guess they expect that if you know and care what an em-dash is, then you’re probably going to be able to figure out how to type one. Learning TeX taught me a lot about typesetting, which to this day I regard as a Very Good Thing. I took a look at some of my old TeX source just a few days ago, and it still looks good to me. (Em dashes in TeX get entered as ‘—’ or ‘\emdash’, by the way.)

I made a lot of course material with TeX in the old days, too. I had different templates for making pages with bigger fonts that were suitable for printing on transparencies which could then be displayed on those old overhead projectors. I remember carrying those heavy things around on airplanes. The boxes of plastic foils, not the projectors.

But a slide show that I would present at IOUW, that’s another matter. That’s no place for black and white transparencies. For IOUW, I obtained permission from my boss at the time, Robert W. Rudzki, to produce 35mm slides in actual color. I owe a lot to Bob (or “Bwob,” as we who love him called him, because he seemed to enjoy letting us mock his Pittsburgh accent). I don’t know how many strings he had to pull to get Oracle to approve of this kid in his group to create color 35mm slides, but I presume it was a pretty big deal.

I remember the slides costing something like $400 to prepare. (See the Big Deal?) I think there were around 35 slides in total. I remember who prepared them, too: a couple named Guy and Karen Lucien. I don’t think I ever met Guy or Karen, but they did a very nice job on my slides. I remember telephone conversations with them over faxes (back when faxes were black and white), saying stuff like, “I expected the disk on the right to be red.” Or, “There needs to be an arrow going from here to there.”

Anyway, I remember doing all the hard work to put together the material, make all these slides, and deal with the nervousness of having what I had hoped would be a 500-person audience see what I had to say. I forget when my talk was scheduled, but I had my flight booked, and I was all ready to go.

Then, about two weeks before the event, I got my summons in the mail. I was supposed to report to the Dallas County Court House for Jury Duty on exactly the morning I was supposed to present in Miami. At least the time was off by an hour. No, wait, no, if you allow for the one-hour time zone difference, I was to report exactly when I was supposed to begin my presentation in Miami. All the detailed information on the summons about being NOT EXCUSED FOR BUSINESS REASONS, …that really helped me to work up my confidence.

I wish I still had a copy of the letter I wrote to the Judge. I would have written it in TeX. Whatever I said, it worked. I got a return letter in the mail, just in time, saying that my date was postponed, so it was a couple of weeks later that I got to go fulfill my civic duty. I sat for a couple of hours before being dismissed without even so much as a role in a voir dire. By that time, I had seen my 500 people in Miami.

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