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Combat with an enqueue wait event (enq: HW–Contention)

Recently I’ve been combating a high water mark enqueue wait (enq: HW – contention) on a single node within an Exadata I’m supporting.   I first noticed the wait when I was looking at the performance...

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Performance Tuning with AWR & ASH in #em12c

Oracle monitoring and performance tuning has grown over the years.  With every release of the Oracle database the monitoring capabilities that have been provided have evolved.  In Oracle11g, monitoring...

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Tuning with ASH Analytics in #em12c

Performance tuning of the Oracle Database has always been a great thing to learn and a valuable skill for any database administer.  In a previous post, I talked about how to use the Active Workload...

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Setup Streams Performance Advisor (UTL_SPADV) for #GoldenGate

With Oracle “merging” Oracle GoldenGate into Oracle Streams (or vise-versa), capturing statitics on the intergrated extract (capture) or integrated replicat (happy) will be needed.  In order to do...

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