DBA_HIST_SERVICE_WAIT_CLASS

DBA_HIST_SERVICE_WAIT_CLASS displays the history of wait class information for services as tracked by the Workload Repository. This view contains information from V$SERVICE_WAIT_CLASS.


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

WAIT_CLASS_ID

NUMBER

NOT NULL

Identifier for the class of the wait event

WAIT_CLASS

VARCHAR2(64)

 

Name for the class of the wait event

TOTAL_WAITS

NUMBER

 

Total number of waits for this event

TIME_WAITED

NUMBER

 

Total amount of time waited for this event (in hundredths of a second)

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_WAIT_CLASS"