I’ve had a couple of recent discussions around clustering and how if you attempt to improve the clustering of a table based on a column, you thereby ruin the current clustering that might exist for a different column. The common wisdom being you can only order the data one way and if you change the […]
I’m very excited and privileged to be asked to present the opening and closing sessions at this year’s Trivadis Performance Training Days in Zurich, Switzerland on 19-20 September 2018. It’s one of the premier Oracle training events in Europe, one which I’ve always wanted to attend. This year has a fantastic lineup, so I’m really […]
Just a short note to say I’ve started a new blog that we focus on the one and only David Bowie: https://davidbowiewordpresscom.wordpress.com/ Those of you that only vaguely know me, know I’m a huge David Bowie fan, so I thought it might be a bit of fun to write about his extraordinary body of work. I’m […]
One of the potentially cool new features introduced in Oracle Database 18c is the Memoptimized RowStore, designed to improve the performance and scalability of key-value based queries. A new pool in the SGA called the Memoptimize Pool can be configured to store specific heap tables that you may wish to optimize, in a manner not […]
Although the recently released Oracle 18c Database is really just 18.104.22.168 under the covers, there are a few little features and enhancements that are of interest from an indexing perspective. These include: Memory Optimized Rowstore Scalable Sequences Oracle Text indexing enhancements, such as automatic background index maintenance and new optimize index options JSON Search Index […]
I’m currently determining which European countries to initially target for a series of my 2 day Oracle Indexing Internals and Best Practices seminars tentatively scheduled for the late May / early June time frame. The cost for the 2 day seminar is to be confirmed but will be approximately 1200 Euros (plus any local taxes), […]
While answering a recent question on a LinkedIn forum, it got me thinking whether there’s a potential use case for using an INDEX SKIP SCAN I hadn’t previously considered. I’ve discussed Index Skip Scans previously (as I did here), a feature introduced around Oracle9i that allows an index to be considered by the CBO even […]
I’m very pleased to announce I’ve now finalised some dates in New Zealand for my popular and highly acclaimed “Oracle Indexing Internals and Best Practices” seminar. They are: Wellington 12-13 March 2018: Tickets and Registration Link Auckland 15-16 March 2018: Tickets and Registration Link As usual, numbers will be strictly limited due to the small class nature […]
As a Christmas present to those in the UK looking at attending my “Oracle Indexing Internals and Best Practices” seminar in February next year, the Early Bird rates are now available until 19th January 2018. Take this opportunity to attend this highly acclaimed seminar that is packed full of information designed to significantly improve the […]
Attention Oracle Professionals in the United Kingdom !! I have now finalised all the dates and venues for a series of my popular and critically acclaimed “Oracle Indexing Internals and Best Practices” seminar I’ll be running in the UK in February 2018. I’m extremely excited as this will be the first time I’ve delivered this […]
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