問題文
A site runs Oracle Database without a license for the management pack that contains the Automatic Workload Repository and the Automatic Database Diagnostic Monitor. The team still wants periodic instance statistics that can be compared between a good day and a bad day. What does Statspack provide?
選択肢
- It writes every call that a session makes into a file so that a formatting utility can list the resources each statement used.
- It reads the snapshots that already exist and turns them into findings so that the root cause is named with its share of database time.
- It samples the sessions that are active every second so that the recent activity can be seen without a new snapshot.
- It gathers the statistics of the instance into its own snapshots so that a report between two of them shows what changed.