Clik here to view.
Thinking Clearly About Performance, revised to include Skew
I’ve just updated the “Thinking Clearly” paper to include an absolutely vital section that was, regrettably, missing from the first revision. It’s a section on the subject of skew.I hope you enjoy.
View Article12c Hybrid Hash Distribution with Skew Detection / Handling
Oracle 12c introduces several new features in the area of Parallel Execution. Over the next couple of weeks I attempt to publish more about them - Jonathan Lewis for example already published a note...
View Article12c Hybrid Hash Distribution with Skew Detection / Handling - Failing
This is just an addendum to the previous post demonstrating one example (out of many possible) where the join skew handling feature fails. The test case setup is the same as in the previous post.As...
View ArticleParallel Execution Skew - Addressing Skew Using Manual Rewrites
This is just a short note that the next part of the mini series about Parallel Execution skew has been published at AllThingsOracle.com.After having shown in the previous instalment of the series that...
View ArticleParallel Execution Skew - Summary
I've published the final part of my video tutorial and the final part of my mini series "Parallel Execution Skew" at AllThingsOracle.com concluding what I planned to publish on the topic of Parallel...
View Article