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Two questions...
1- Are you positive the ONLY process running on the database was this one? if any other process was running that will affect redo size.
2- As far as I can see table was created from two different sources - myTable_v on the first run and PCPA_PLAN_PTEVENT on the second run.
Also... if you are planning to do insert APPEND do not use REUSE STORAGE during truncation, APPEND hint causes Oracle to insert above high watermark.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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