V$CPOOL_CC_STATS

V$CPOOL_CC_STATS displays information about the connection class level statistics for the Database Resident Connection Pool per instance.

Column	Datatype	Description
POOL_NAME	VARCHAR2(1024)	Name of the Database Resident Connection Pool
CCLASS_NAME	VARCHAR2(1024)	Name of the connection class
NUM_REQUESTS	NUMBER	Number of session requests
NUM_HITS	NUMBER	Total number of times a session that matches with the request was found in the pool
NUM_MISSES	NUMBER	Total number of times an exact match to the request was not found in the pool and a new session had to be created
NUM_WAITS	NUMBER	Total number of times session requests had to wait before getting served
WAIT_TIME	NUMBER	Reserved for future use
CLIENT_REQ_TIMEOUTS	NUMBER	Reserved for future use
NUM_AUTHENTICATIONS	NUMBER	Total number of authentications of clients done by the pool
CON_ID	NUMBER	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

Note: This view returns data only when queried from a CDB root. When queried from a PDB, this view returns 0 rows.