V$CLIENT_STATS displays measures for all sessions that are active for the client identifier per instance. The statistics available in this view are a subset of those available in V$SESSTAT and V$SESS_TIME_MODEL.
Derived statistic name from V$STATNAME and V$SESS_TIME_MODEL
Cumulative value (in microseconds)
The ID of the container to which the data pertains. Possible values include:
0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.
1: This value is used for rows containing data that pertain to only the root
n: Where n is the applicable container ID for the rows containing data