DBA_HIST_IOSTAT_FILETYPE_NAME displays historical I/O statistics for file type names. This view contains snapshots of V$IOSTAT_FILE.

Column Datatype NULL Description
DBID NUMBER NOT NULL Database ID for the snapshot
FILETYPE_ID NUMBER NOT NULL Type of file (for example, log file, data file, and so on)
FILETYPE_NAME VARCHAR2(30) NOT NULL Name of the file, in the case of a data file or temp file. For all other files, a corresponding string to be displayed (for example, ARCHIVELOG).