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Oracle® Database Reference
12c Release 1 (12.1)

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V$DATAGUARD_STATUS displays messages recently written to the alert log or server process trace files that concern physical standby databases or redo transport services for all standby database types.

Column Datatype Description
FACILITY VARCHAR2(24) Facility that encountered the event:
  • Crash Recovery

  • Log Transport Services

  • Log Apply Services

  • Role Management Services

  • Remote File Server

  • Fetch Archive Log

  • Data Guard

  • Network Services

SEVERITY VARCHAR2(13) Severity of the event:
  • Informational - Informational message

  • Warning - Warning message

  • Error - Indicates the process has failed

  • Fatal

  • Control - An expected change in state such as the start or completion of an archival, log recovery, or switchover operation

DEST_ID NUMBER Destination ID number to which the event pertains. If the event does not pertain to a particular destination, then the value is 0.
MESSAGE_NUM NUMBER A chronologically increasing number giving each event a unique number
ERROR_CODE NUMBER Error ID pertaining to the event
CALLOUT VARCHAR2(3) Reserved for future use
MESSAGE VARCHAR2(256) A text message describing the event
CON_ID NUMBER The ID of the container to which the data pertains. 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