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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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V$MAP_FILE

V$MAP_FILE contains a list of all file mapping structures in the shared memory of the instance.

Column Datatype Description

FILE_MAP_IDX

NUMBER

Index corresponding to file

FILE_CFGID

VARCHAR2(256)

Configuration ID: N/A if configuration ID is not supported

FILE_STATUS

VARCHAR2(7)

Status of the mapping information:

  • VALID - file mapping information is latest
  • INVALID - mapping needs to be refreshed

FILE_NAME

VARCHAR2(256)

Absolute file name

FILE_TYPE

VARCHAR2(11)

File type (DATAFILE, SPFILE, TEMPFILE, CONTROLFILE, LOGFILE, or ARCHIVEFILE)

FILE_STRUCTURE

VARCHAR2(9)

File structure (FILE, RAWVOLUME, RAWDEVICE, or NONE)

FILE_SIZE

NUMBER

File size in HKB (Half KB)

FILE_NEXTS

NUMBER

Number of file extents in the file (not necessarily the same as the number of file extents mapped)

LIB_IDX

NUMBER

Index of mapping library claiming ownership of the file