Online Detecting Lock Contention eLearning
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From 123-CBT Computer Based Training
Oracle8 Performance Tuning Optimizing Sorts and Minimizing Contention

...the snapshot too old error.
Unit 4: Monitoring and Detecting Lock Contention
Duration: 1 Hour(s)
Identify locking attributes.
Label the list of characteristics as either DML or DDL lock attributes.
Identify DML lock characteristics.
Label the list of characteristics as either Row Exclusive or Row Share table lock modes.
Lock a table.
Identify table partition lock
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Oracle8 Performance Tuning Optimizing Sorts and Minimizing Contention
