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Don Burleson Blog 







_awr_flush_threshold_metrics tips

Oracle Database Tips by Donald BurlesonNovember 16, 2015

Question:  What is the hidden parameter _awr_flush_threshold_metrics used for?

I need to export only my table and index definitions for my schema.  What are the ways to export only the metadata definitions and not export the data?

Answer: The _awr_flush_threshold_metrics = true parameter enables/disables flushing of AWR threshold metrics. It is normally TRUE unless someone wants to disable the flushing of the metrics for long-term retention. Also see how to flush awr data.

A Static Baseline uses AWR data from a user-defined period which must be at least seven days. The statistics are calculated once, when you define the baseline, and are used forever until you switch to a new baseline. So Static Baselines don't make any allowance for the change in a system's work profile over time.

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