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System statistics poll

Recent thread in the OakTable mailing list prompted me to create a poll and ask about the ways DBAs use system statistics in real systems. If you struggle to understand what system statistics is and what are the available options, here is the suggested reading:
Documentation – System Statistics
Best Practices for Gathering Optimizer Statistics, Oracle whitepaper
System Statistics – Troubleshooting Oracle Performance
Understanding the different modes of System Statistics, blog series

Filed under: CBO, Oracle Tagged: poll, statistics