V$STREAMS_MESSAGE_TRACKING

V$STREAMS_MESSAGE_TRACKING displays information about LCRs tracked through the stream that are processed by each Streams client. Use the DBMS_STREAMS_ADM.SET_MESSAGE_TRACKING procedure to specify a tracking label that becomes part of each LCR generated by the current session.

If the actions parameter in the DBMS_STREAMS_ADM.SET_MESSAGE_TRACKING procedure is set to DBMS_STREAMS_ADM.ACTION_MEMORY, then information about the LCRs is tracked in memory and this view is populated with information about the LCRs. If the actions parameter is set to DBMS_STREAMS_ADM.ACTION_TRACE, then this view is not populated and information about the LCRs is sent to the trace files at each database.

Column	Datatype	Description
`TRACKING_LABEL`	`VARCHAR2(30)`	User-specified tracking label
`TAG`	`RAW(30)`	First 30 bytes of the tag of the LCR
`COMPONENT_NAME`	`VARCHAR2(30)`	Name of the component that processed the LCR
`COMPONENT_TYPE`	`VARCHAR2(30)`	Type of the component that processed the LCR
`ACTION`	`VARCHAR2(50)`	Action performed on the LCR
`ACTION_DETAILS`	`VARCHAR2(100)`	Details of the action
`TIMESTAMP`	`TIMESTAMP(9) WITH TIME ZONE`	Time when the action was performed
`MESSAGE_CREATION_TIME`	`DATE`	Time when the message was created
`MESSAGE_NUMBER`	`NUMBER`	SCN of the message
`TRACKING_ID`	`RAW(16)`	Globally unique OID of the LCR
`SOURCE_DATABASE_NAME`	`VARCHAR2(128)`	Name of the source database
`OBJECT_OWNER`	`VARCHAR2(30)`	Owner of the object
`OBJECT_NAME`	`VARCHAR2(30)`	Name of the object
`XID`	`VARCHAR2(128)`	Transaction ID
`COMMAND_TYPE`	`VARCHAR2(30)`	Command type of the LCR
`MESSAGE_POSITION`	`RAW(64)`	Reserved for internal use