Oracle
1Z0-060 · Question #138
1Z0-060 Question #138: Real Exam Question with Answer & Explanation
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Question
You upgraded from a previous Oracle database version to Oracle Database version to Oracle Database 12c. Your database supports a mixed workload. During the day, lots of insert, update, and delete operations are performed. At night, Extract, Transform, Load (ETL) and batch reporting jobs are run. The ETL jobs perform certain database operations using two or more concurrent sessions. After the upgrade, you notice that the performance of ETL jobs has degraded. To ascertain the cause of performance degradation, you want to collect basic statistics such as the level of parallelism, total database time, and the number of I/O requests for the ETL jobs. How do you accomplish this?
Options
- AExamine the Active Session History (ASH) reports for the time period of the ETL or batch reporting runs.
- BEnable SQL tracing for the queries in the ETL and batch reporting queries and gather diagnostic data from
- CEnable real-time SQL monitoring for ETL jobs and gather diagnostic data from the V$SQL_MONITOR view.
- DEnable real-time database operation monitoring using the DBMS_SQL_MONITOR.BEGIN_OPERATION
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