UKOUG Tech 14 : Monday

The day started with a taxi ride into New Street station to get the 06:01 train to Liverpool Lime Street. I was a little dissapointed that the train was a sprint train, so there were no tables and no power...
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Cardinality Change

Here’s an entertaining little change across versions of Oracle, brought to my attention by Tony Hasler during UKOUG Tech 14. It’s a join cardinality estimate, so here are a couple of tables...
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Announcing XtremIO Performance Engineering Lab Report: Facts About Redo Logging And NAND Flash.

I invite you to please read this report. NAND Flash is good for a lot of things but not naturally good with write-intensive workloads. Unless, that is, skillful engineering is involved to mitigate the...
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Field Service Management Top Ten: Talking the Talk by Tori Ballantine

As with any industry, there is a lot of lingo involved when talking about field service management. Don’t worry if you don’t know all of the terms: we’re here to help. Here is a glossary of the top...
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Join Us For a Networking Event at UKOUG

Join us for an informal networking event alongside Rittman Mead on Monday December 8th during UKOUG. We will be discussing how to leverage data to drive your organization’s success. Come meet with peers...
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RELY trumps DISABLE

Learning, relearning or unforgetting… What value is there in a DISABLEd constraint? This was a question on the OTN forums this week and a) my first instinct was wrong and b) I couldn’t find...
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Closure

It’s been a long time since I said anything interesting about transitive closure in Oracle, the mechanism by which Oracle can infer that if a = b and b = c then a = c but only (in Oracle’s...
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Announcing SLOB 2.2 : Think Time and Limited-Scope User-Data Modification

This is a hasty blog post to get SLOB 2.2 out to those who are interested. In addition to doing away with the cumbersome “seed” table and procedure.sql, this kit introduces 5 new slob.conf...
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OMS and OMR Performance- Part III, Metrics Page

Before heading off to UKOUG’s Tech 14 conference, thought I would jump back from the Agents performance page and look into the very important page in the Oracle Management Service, (OMS) and Oracle...
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What Does “Backup Restore Throttle Speed” Wait Mean?

After migrating a 10g database to 11g, I asked the Application team to start their tests in order to validate that everything was working as expected. I decided to keep an eye on OEM’s Top Activity page...
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