Bryan's Oracle Blog

Oracle Database Architecture blog sharing my experiences as an oracle Architect. These opinions and recommendations are my own.

Monday, January 31, 2011

DBMS_FILE_TRANFER.COPY_FILE and locking

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I was working on copying an RMAN backup from an NFS mount into ASM to do a restore of a database.. I figured.. A great opportunity to use DB...
Monday, December 27, 2010

Profiles, GTT's and how changing the underlying view can cause FTS's

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We are using a GTT, multiple times, in a view.. 1) Just the query --------------------------------------------------------------------...
Thursday, December 23, 2010

SQL profiles and Dynamic Sampling

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I've been playing some more with profiles, and I came up with a reproduciple test case. 1) Start with the OE schema in the database ...
Monday, December 6, 2010

How to view sql_profiles

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I am using profiles for some very stubborn queries. I wanted to know what the profile really looks like. It looks like Oracle has significa...
Friday, December 3, 2010

SQL profiles

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I have been spending a lot of time with SQL_PROFILES, and figuring out how my profile went stale (and subsequently the performance went from...
Wednesday, November 17, 2010

Oracle on ASM

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I discovered an interesting little by product of running Oracle on ASM.. Our SGA was sized a little small on a non-production box.  All of a...
Wednesday, November 3, 2010

SCAN (single client access name)

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If you didn't know it, there is a new feature in 11.2 Grid called SCAN.  Here is a link to a little more information http://www.orafaq.c...
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