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Oracle Database 11gR2 Performance Tuning Cookbook
book

Oracle Database 11gR2 Performance Tuning Cookbook

by Ciro Fiorillo
January 2012
Intermediate to advanced
542 pages
11h 28m
English
Packt Publishing
Content preview from Oracle Database 11gR2 Performance Tuning Cookbook

V$DATAFILE

This lists datafile information taken from the control file.

Fields

The most relevant view fields are as follows:

  • FILE#: The file identification number
  • NAME: The filename
  • CREATION_TIME: The timestamp of file creation
  • TS#: The tablespace identification number
  • STATUS: The datafile status; can be OFFLINE, ONLINE, SYSTEM, RECOVER, or SYSOFF
  • ENABLED: This describes if the file is accessible; the possible values are DISABLED, READ ONLY, READ WRITE, or UNKNOWN
  • BYTES: The datafile size in bytes
  • BLOCKS: The datafile size in database blocks

See also

  • The V$FILESTAT, V$LOGFILE, and V$TEMPFILE sections in this appendix
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Publisher Resources

ISBN: 9781849682602Other