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October 2014

Oracle In-Memory Column Store Internals – Part 1 – Which SIMD extensions are getting used?

This is the first entry in a series of random articles about some useful internals-to-know of the awesome Oracle Database In-Memory column store. I intend to write about Oracle’s IM stuff that’s not already covered somewhere else and also about some general CPU topics (that are well covered elsewhere, but not always so well known in the Oracle DBA/developer world).

Oracle OpenWorld 2014 : Summary

OpenWorld 2014 was dominated by jet lag. Not that “special” type of Doug Burns jet lag, but the real stuff. As I mentioned in a previous post, having been ill in the 3 weeks leading up to OpenWorld, the jet lag hit me hard and I had nothing in reserve to get me through it. I’m now back in the UK and it is even worse. It’s 01:00 as I write this and I’ve been to sleep for about 3 hours. I’m now wide awake. It’s going to be a long day!

Apart from the jet lag, what was the overall message at OOW14?

Cloud

Openworld

Well, the annual spectacle of enormous proportions has come to a conclusion again. And thats probably the first reason I’d recommend OpenWorld to anyone who works with Oracle who has never been to it. It’s a jaw dropping moment just to see the scale of the event, and how impressively its organised in terms of facilities, lunches, registration and the like.

But onto the technical elements, here’s my impressions of this years conference:

1) Big data, Big data, Big data, Big data

Abstract Review Tips

Yes, this is for my RMOUG abstract reviewers, but it may help other conferences and user groups, too.  We have some incredible content at RMOUG, (Rocky Mtn. Oracle User Group) Training Days conference and its all due to a very highly controlled, thought out process that has evolved over time to ensure that we have an abstract selection process that is as fair as possible and offers new speakers opportunities as well.

OOW14 Session: The Art and Craft of Tracing

A big thanks to all those who braved attending my session on the final day of Oracle Open World 2014. I hope you enjoyed it and found it valuable.

You can download the slide deck as well as the scripts I mentioned here.

As always, I would love to hear from you.

OOW14 Session: RAC'fying Multitenant

Thank you for attending my session RAC'fying Multitenant at Oracle Open World 2014. You can download the slide deck here.

[Updated] Oct 4th, 2014: The article on multitenant I wrote for OTN is available here. http://www.oracle.com/technetwork/articles/database/multitenant-part1-pdbs-2193987.html. This article shows various commands I referenced in my session, e.g. point in time recovery of PDBs.

As always I would love to hear from you.

Index Compression Part V: 12c Advanced Index Compression (Little Wonder)

I’ve finally managed to find some free time in the evening to write a new blog piece :) This will have to be the record for the longest time between parts in a series, having written Part IV of this Index Compression series way way back in February 2008 !! Here are the links to the previous articles […]

Site Hosting Update : The Proxy Wars

This site hosting thing really is the gift that keeps giving. :)

I wrote a little over a week ago about an outstanding issue with the website, which seemed to be related to people’s company proxy servers, rather than my web server. While I was staying at the Sofitel, I started to get the issue where the HTTP address for my website was giving me the following error.

Forbidden
You don’t have permission to access / on this server.

Oracle OpenWorld 2014 : Wednesday

Another early start on Wednesday. I headed down to meet the Dbvisit gang for breakfast. FYI: I’m not paid to keep mentioning them and I don’t work for them. They are just a great group of people who I really like, so when I get a chance to meet up with them I do. :)

Oracle OpenWorld 2014 : Tuesday

Tuesday started early with 5 hours in the hotel lobby. The plan was to catch up on my blogging using the free wifi. I hadn’t blogged for a couple of days, which prompted an email from my mom to see if I was OK. :)

It took about 5 hours to complete two blog posts, because every 30 seconds someone new walked by and I was “forced” to speak to them. :)

That done, I headed down to Moscone South to check out the Dbvisit stand. I mentioned a few weeks ago that I had never tried a Twinkie, so Chris Lawless went to work correcting that state of affairs by bringing a box of Twinkies to their stand. You can see me trying my first Twinkie here!