MyISAM engine yapısına sahip tablolar hakkında “myisamchk” ile detaylı bilgi almak mümkün.

myisamchk -dv oz_users.MYI

MyISAM file:         oz_users.MYI
Record format:       Packed
Character set:       latin1_swedish_ci (8)
File-version:        1
Creation time:       2011-04-16 11:52:43
Status:              open,changed
Auto increment key:              1  Last value:                102307
Data records:                98296  Deleted blocks:                 0
Datafile parts:              98524  Deleted data:                   0
Datafile pointer (bytes):        6  Keyfile pointer (bytes):        6
Datafile length:          22651516  Keyfile length:           7384064
Max datafile length: 281474976710654  Max keyfile length: 288230376151710719
Recordlength:                  948

table description:
Key Start Len Index   Type                     Rec/key         Root  Blocksize
1   1     4   unique  unsigned long                  1       300032       1024
2   1     4   unique  unsigned long prefix           0      7077888       1024
    843   100         varchar                        1