mysql数据库下损坏数据的恢复操作其过程总结(2)

                      myisamchk very silent
  -v, --verbose       Print more information. This can be used with
                      --description and --check. Use many -v for more verbosity!

  -V, --version       Print version and exit.
  -w, --wait          Wait if table is locked.

Check options (check is the default action for myisamchk):
  -c, --check         Check table for errors
  -e, --extend-check  Check the table VERY throughly.  Only use this in
                      extreme cases as myisamchk should normally be able to
                      find out if the table is ok even without this switch
  -F, --fast          Check only tables that haven't been closed properly
  -C, --check-only-changed
                      Check only tables that have changed since last check
  -f, --force         Restart with '-r' if there are any errors in the table.
                      States will be updated as with '--update-state'
  -i, --information   Print statistics information about table that is checked
  -m, --medium-check  Faster than extend-check, but only finds 99.99% of
                      all errors.  Should be good enough for most cases
  -U  --update-state  Mark tables as crashed if you find any errors
  -T, --read-only     Don't mark table as checked

Repair options (When using '-r' or '-o')
  -B, --backup        Make a backup of the .MYD file as 'filename-time.BAK'
  --correct-checksum  Correct checksum information for table.
  -D, --data-file-length=#  Max length of data file (when recreating data
                      file when it's full)
  -e, --extend-check  Try to recover every possible row from the data file
                      Normally this will also find a lot of garbage rows;
                      Don't use this option if you are not totally desperate.
  -f, --force         Overwrite old temporary files.
  -k, --keys-used=#   Tell MyISAM to update only some specific keys. # is a
                      bit mask of which keys to use. This can be used to
                      get faster inserts!
  -r, --recover       Can fix almost anything except unique keys that aren't
                      unique.
  -n, --sort-recover  Forces recovering with sorting even if the temporary
                      file would be very big.
  -p, --parallel-recover
                      Uses the same technique as '-r' and '-n', but creates
                      all the keys in parallel, in different threads.
                      THIS IS ALPHA CODE. USE AT YOUR OWN RISK!
  -o, --safe-recover  Uses old recovery method; Slower than '-r' but can