Well I don’t have a lot of time to write anything up… sheesh – it’s like 10pm and I’m still messing with this. I should be in bed. But before I quit for the night I thought I’d just do a quick post with some queries that might be useful for anyone working on a [...]
Formula for db_file_multiblock_read_count
September 2nd, 2007 Comments Off
Just sent this to someone in an email and it seems like something that could be useful for everyone. They were asking how to determine the best setting for db_file_multiblock_read_count. First off, you probably will need assistance from a system admin or SAN admin if you’re running on a SAN. And contrary to one popular [...]
Notes on 11g New Features, Part 1
August 24th, 2007 § 1 Response
I’ve been AWOL from the blogging world for quite awhile. Been busy for the past few weeks; working on another ITC white paper about RAC, assembled and delivered some internal 11g presentations and right now I’m in DC working with a client… all that has added up and kept me from blogging much. I had [...]
Oracle 11g now on OTN for download!
August 9th, 2007 § 3 Responses
Download Oracle 11g for Linux now! Looks like it just went up on OTN!!!
Log Buffer #55: a Carnival of the Vanities for DBAs
July 27th, 2007 § 11 Responses
Ladies and gentlemen, boys and girls, cats, dogs, goats, cows, furry objects, Kevin Clossen, and whoever else may have accidentally stumbled here: the great blogosphere may have appeared to gradually slow. But fear no more, the tides are changing! You may now stop pinching yourself and trying to find your doctor’s phone number because this [...]
10g Subquery Unnesting Anomalies
July 18th, 2007 Comments Off
I’ve been spending quite a bit of time over the past week studying subquery optimization. It started with an anomaly I noticed at a client site and led me through a refresher on Jonathan Lewis’ chapter on transformations and through a lot of time reading trace files. I’ll probably write a few posts about subqueries… [...]
NFS and Stats Collection in Oracle 11g
July 12th, 2007 § 1 Response
A few more 11g new features – that you might not have heard about yet – which stand out in my opinion! Direct NFS First, Kevin just posted whitepaper/press release links and made some comments about Direct NFS. Oracle 10g introduced ASM – streamlining hardware access by effectively allowing the database engine to bypass all [...]