Articles tagged

19 May 2014
19 May 2014

Parallel Execution Skew – 12c Hybrid Hash Distribution With Skew Detection

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Since Parallel Execution Skew is a common problem that can severely limit the scalability of Parallel Execution (see my previous article for a demonstration), Oracle has introduced a new feature in 12c that can address the problem automatically. That’s great, but unfortunately – at least in the initial 12c release – it only applies to a limited number of scenarios,… Read more