DBA_HIST_SERVICE_STAT

DBA_HIST_SERVICE_STAT displays the history of important service statistics tracked by the Workload Repository.

The call rate statistics in this view can be used for making run-time routing decisions, for tracking service levels, and for per-instance diagnostics per call rate.

The elapsed timing for each call provides a relative value across instances for how well a node is processing SQL calls issued under a service name. When aggregation is enabled for the service name, this view provides historical data on the timing and work done for calls issued for the whole service. This view contains information from V$SERVICE_STATS.

Column	Datatype	NULL	Description
SNAP_ID	NUMBER	NOT NULL	Unique snapshot ID
DBID	NUMBER	NOT NULL	Database ID for the snapshot
INSTANCE_NUMBER	NUMBER	NOT NULL	Instance number for the snapshot
SERVICE_NAME_HASH	NUMBER	NOT NULL	Hash of the service name
SERVICE_NAME	VARCHAR2(64)	NOT NULL	Name of the service
STAT_ID	NUMBER	NOT NULL	Statistic identifier
STAT_NAME	VARCHAR2(64)	NOT NULL	Statistic name
VALUE	NUMBER		Value of the statistic
CON_DBID	NUMBER		The database ID of the PDB for the sampled session
CON_ID	NUMBER		The ID of the container that CON_DBID identifies. 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

See Also: “V$SERVICE_STATS”