DBA_LOGSTDBY_PROGRESS

List the SCN values describing read and apply progress

Columns
   ___________________________
 
   APPLIED_SCN
   APPLIED_TIME
      Estimate of the time the applied_scn was generated
   READ_SCN
      All log data greater than this SCN has been preserved in the database
   READ_TIME
      Estimate of the time the read_scn was generated
   NEWEST_SCN
      The most recent SCN available on standby.
   NEWEST_TIME
      Estimate of the time the newest_scn was generated

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Simon Sheppard
SS64.com