Yuan Yao, An Oracle ACE's Blog
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AWR
Evaluating Storage Performance by AWR Snapshot Raw Data
Oracle AWR Case Study: Diagnosing ‘enq: TX – row lock contention’
Oracle AWR Case Study: Pinpointing When the Execution Plan Flip Occurred
How Oracle Calculates the Number of Sessions in the AWR Report
Oracle AWR Case Study: Slow Standby Database Dragging down the Primary
Where Do These SQLs Come From?
Interpreting “SQL ordered by Physical Reads (UnOptimized)”
What Are These SQLs Doing Besides CPU and I/O?
How Representative Are Captured SQL Statements in Oracle AWR Reports?
Understanding “SQL Execute Elapsed Time” in the “Time Model Statistics”
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