The unified audit facility serves to consolidate all audit trails into a single audit trail table, improve audit performance, secure audit data and components like RMAN and Data Pump.
The unified audit feature will address the following challenges:

·         Grouping audit options into a simple audit policy
·         Merging all audit trails into a single unified audit trail table
·         Relying on a read-only audit trail table
·         Separating audit administration duties with audit administration roles, AUDIT_ADMIN and AUDIT_VIEWER
·         Ability to use System Global Area (SGA) queues for accumulating audit records, enabling auditing to be turned on with negligible overhead

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