Tag: Oracle

Meet the First Oracle ACE Director in MySQL — Sheeri Cabral

I’m excited to share the news that Oracle ACE program has been extended to cover MySQL community now and Pythian’s Sheeri Cabral has become the very first Oracle ACE Director in MySQL expertize area. It’s a special privilege for me to blog about it because I had a pleasure to nominate Sheeri in the first place. Being an Oracle ACE Director myself and knowing what’s involved, I believed that if Oracle ACE program is extended to MySQL, Sheeri must be the number one candidate.

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Log Buffer #184, A Carnival of the Vanities for DBAs

This is the 184th edition of Log Buffer, the weekly review of database blogs. I’ve edited a couple of Log Buffers before, but this is the first time I get to post directly to the Pythian blog. Just one of the many perks of being a Pythian employee ;)

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Where did the filter come from?

There has been a recent thread on ORACLE-L where the poster asked why there is an extra filter predicate which appears when functions are being used in the where clause. We can observe the behavior using the following test case.

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Log Buffer #183, A Carnival of the Vanities for DBAs

Hello folks, it’s great to be back from hiatus. This is the 183rd edition of Log Buffer (arguably the best edition of Log Buffer yet!), the weekly review of database blogs.

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Deferrable constraints in Oracle 11gR2 may lead to corrupted data

I’ve hit a bug in Oracle 11.2.0.1 when working with deferrable constraints which I think is worth sharing as it may have profound consequences under certain scenarios.Here it is.

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Hotsos Symposium 2010 — Battle Against Any Guess Is Won

What’s unusual about this session is that it’s not some technical stuff that I usually do but a more conceptual and motivational talk. Could I pull it off? Well, I think it went fairly well in general even though I did identify few rough places and my lack of English language mastering. Might need to work a little bit more on the flow of the presentation. We had quite a few good laughs. Later, people in the next hall were asking about it and Dan was making the jokes on the stage so it must have been loud. Anyway, I think nobody fell asleep and I managed to get people thinking about the topic. I received many “thank you” notes yesterday and compliments on a good session so by the end of the day I was more and more pleased. Thanks everyone for attending and especially big thanks to those of you who brought to my attention examples from their own battles. If you have more to discuss — contact me by email (my last name) {at} pythian.com.

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Oracle 11gR2 Grid Infrastructure — Memory Footprint

Upgrading to 11g Release Grid Infrastructure? You probably want to read on…

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Log Buffer #181: A Carnival of the Vanities for DBAs

The 181st edition of Log Buffer has been published by Gary Myers on his Sydney Oracle Lab.

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Live RAC SIG Web-cast Today: Oracle ASM 11g — The Evolution

ust a quick announcements…If you didn’t manage to attend my presentation, Oracle 11g ASM — The Evolution, during RMOUG or other conferences, you have a chance to see it online today. I’m doing it a web-cast at RAC SIG. It’s today, 4-Mar-10 at 12:00pm EST (9:00am PST).

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RAC+ASM 3 years in production. Stories to share (slides from RMOUG10)

Here are the slides from my presentation at RMOUG 2010. I am not sure how much sense all this will make without my comments. We may do it in a webinar if there is sufficient interest. Regardless I will probably be doing it again at some point in the future.

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