6.81 DBA_HIST_THREAD

DBA_HIST_THREAD displays historical thread information from the control file.

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

THREAD#

NUMBER

NOT NULL

Thread number

THREAD_INSTANCE_NUMBER

NUMBER

Instance number of the thread

STATUS

VARCHAR2(6)

Thread status (OPEN) or (CLOSED)

OPEN_TIME

DATE

Last time the thread was opened

CURRENT_GROUP#

NUMBER

Current log group

SEQUENCE#

NUMBER

Sequence number of the current log

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