The Parallel collection provides information about the instance’s parallel executions.
The PGA Statistics collection collects information about the use of the PGA memory.
| The number of extra PGA memory allocations that were carried out during the specified time range. | 
This collection contains general information about pluggable databases.
| Indicates from which pluggable database the selected pluggable database is cloned. | |
| The portion of the system's CPU resources that is allocated to the pluggable database. | 
This collection contains the status, state, and startup time for pluggable databases.
| Status of the pluggable database, expressed as a percentage. | |