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Analysing Parallel Execution Skew - DFOs and DFO Trees

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Published on Apr 4, 2014

This is the second part of the video tutorial "Analysing Parallel Execution Skew". In this part I cover the concepts of Data Flow Operations (DFOs) and Data Flow Operation Trees (DFO Trees). Getting a grip at these concepts is important for understanding some of the effects that will be demonstrated in the later parts of this video tutorial.

This tutorial also covers new parallel 12c features.

See the initial part here: https://www.youtube.com/watch?v=4YKDn...

If you're interested in reproducing the SQLs analysed here, you can find the scripts as part of the following blog post:

http://oracle-randolf.blogspot.de/201...

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