Part VI describes how to monitor database activity with auditing.

• Introduction to Auditing
  Auditing tracks changes that users make in the database.
• Configuring Audit Policies
  Unified auditing supports custom unified audit policies, predefined unified auditing policies, and fine-grained auditing.
• Administering the Audit Trail
  Users who have been granted the AUDIT_ADMIN role can manage the audit trail, archive the audit trail, and purge audit trail records.