DBA_AUDIT_SESSION

DBA_AUDIT_SESSION displays all audit trail records concerning CONNECT and DISCONNECT.

Note:

This view is populated only in an Oracle Database where unified auditing is not enabled. When unified auditing is enabled in Oracle Database, the audit records are populated in the new audit trail and can be viewed from UNIFIED_AUDIT_TRAIL.

See Oracle Database Security Guide for more information about unified auditing.
See Oracle Database Upgrade Guide for more information about migrating to unified auditing.

Related View

USER_AUDIT_SESSION displays the audit trail records concerning connections and disconnections of the current user.

Column	Datatype	NULL	Description
`OS_USERNAME`	`VARCHAR2(255)`		Operating system login username of the user whose actions were audited
`USERNAME`	`VARCHAR2(128)`		Name (not ID number) of the user whose actions were audited
`USERHOST`	`VARCHAR2(128)`		Client host machine name
`TERMINAL`	`VARCHAR2(255)`		Identifier of the user's terminal
`TIMESTAMP`	`DATE`		Date and time of the creation of the audit trail entry (date and time of user login for entries created by `AUDIT SESSION`) in the local database session time zone
`ACTION_NAME`	`VARCHAR2(28)`		Name of the action type corresponding to the numeric code in the `ACTION` column in `DBA_AUDIT_TRAIL`
`LOGOFF_TIME`	`DATE`		Date and time of user log off
`LOGOFF_LREAD`	`NUMBER`		Logical reads for the session
`LOGOFF_PREAD`	`NUMBER`		Physical reads for the session
`LOGOFF_LWRITE`	`NUMBER`		Logical writes for the session
`LOGOFF_DLOCK`	`VARCHAR2(40)`		Deadlocks detected during the session
`SESSIONID`	`NUMBER`	`NOT NULL`	Numeric ID for each Oracle session
`RETURNCODE`	`NUMBER`	`NOT NULL`	Oracle error code generated by the action. Some useful values: `0` - Action succeeded `2004` - Security violation
`CLIENT_ID`	`VARCHAR2(128)`		Client identifier in each Oracle session
`SESSION_CPU`	`NUMBER`		Amount of CPU time used by each Oracle session
`EXTENDED_TIMESTAMP`	`TIMESTAMP(6) WITH TIME ZONE`		Timestamp of the creation of the audit trail entry (timestamp of user login for entries created by `AUDIT SESSION`) in UTC (Coordinated Universal Time) time zone
`PROXY_SESSIONID`	`NUMBER`		Proxy session serial number, if an enterprise user has logged in through the proxy mechanism
`GLOBAL_UID`	`VARCHAR2(32)`		Global user identifier for the user, if the user has logged in as an enterprise user
`INSTANCE_NUMBER`	`NUMBER`		Instance number as specified by the `INSTANCE_NUMBER` initialization parameter
`OS_PROCESS`	`VARCHAR2(16)`		Operating System process identifier of the Oracle process