2.4 AWR_ROOT_* Views
The AWR_ROOT views show the AWR data stored only on a CDB root. In general, the AWR_ROOT views are equivalent to the DBA_HIST views.
When the AWR_ROOT views are accessed from a CDB root, they show the AWR data specific to the CDB root.
When the AWR_ROOT views are accessed from a PDB, they show the AWR data specific to that PDB.
See Also:
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Oracle Database Performance Tuning Guide for an introduction to AWR
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Oracle Database Performance Tuning Guide for more information about AWR_ROOT views and related views for accessing AWR in a multitenant environment