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Oracle Database 19c: Performance Management and Tuning
A: Parent and child latches
B: Parent and child latches
C: Optimizer execution plans
D: Plan usage data
E: Enqueue statistics
F: Segment-level statistics
A: Statistics Feedback
B: SQL Plan Directives
C: Statistics Collector
D: Automatic Reoptimization
E: Dynamic Statistics
A: Syntax Check
B: SQL Row Source Generation
C: SQL Optimization
D: Shared Pool Memory Allocation
E: Semantic Check
A: One or more results were aged out of the result cache.
B: result_cache_max_size is set dynamically to 0.
C: A request was made by the RCBG background of a non-RAC database.
D: A request was made by the RCBG background process in a physical standby database that is opened read only and whose primary has a result cache.
E: Decreasing the value set for RESULT_CACHE_REMOTE_EXPIRATION.
A: It does not improve performance for queries using cached results of function evaluations on columns from the same table.
B: It does not improve performance for queries that use join groups on columns from different tables.
C: It can improve OLTP workload performance by avoiding the use of indexes.
D: It does not improve performance for queries using user-defined virtual column results.
B: It does not require all database data to fit in memory to improve query performance.
E: It improves performance for queries joining several tables using bloom filter joins.
