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Oracle® Database Reference
12c Release 1 (12.1)

E17615-23
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DBA_HIST_FILEMETRIC_HISTORY

DBA_HIST_FILEMETRIC_HISTORY displays the history of file metrics collected in the Workload Repository.

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
FILEID NUMBER NOT NULL File number
CREATIONTIME NUMBER NOT NULL File creation time
BEGIN_TIME DATE NOT NULL Begin time of the interval
END_TIME DATE NOT NULL End time of the interval
INTSIZE NUMBER NOT NULL Interval size (in hundredths of a second)
GROUP_ID NUMBER NOT NULL ID of the group to which the file belongs
AVGREADTIME NUMBER NOT NULL Average file read time
AVGWRITETIME NUMBER NOT NULL Average file write time
PHYSICALREAD NUMBER NOT NULL Number of physical reads
PHYSICALWRITE NUMBER NOT NULL Number of physical writes
PHYBLKREAD NUMBER NOT NULL Number of physical block reads
PHYBLKWRITE NUMBER NOT NULL Number of physical block writes
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