Oracle 5.0 Reference Manual page 347

myisamchk
Suppose also that the table has these data and index file sizes:
-rw-rw---- 1 mysql mysql
-rw-rw---- 1 mysql mysql
Example of
myisamchk -dvv
MyISAM file: person
Record format: Packed
Character set: latin1_swedish_ci (8)
File-version: 1
Creation time: 2009-08-19 16:47:41
Recover time: 2009-08-19 16:47:56
Status: checked,analyzed,optimized keys
Auto increment key:
Data records:
Datafile parts:
Datafile pointer (bytes):
Datafile length:
Max datafile length:
Recordlength:
table description:
Key Start Len Index
1 2 4 unique
2 6 20 multip. varchar prefix
27 20
3 48 3 multip. uint24 NULL
Field Start Length Nullpos Nullbit Type
1 1 1
2 2 4
3 6 21
4 27 21
5 48 3 1
6 51 3 1
Explanations for the types of information
index file. "Record" and "row" are synonymous, as are "field" and "column."
The initial part of the table description contains these values:
•
MyISAM file
Name of the
MyISAM
•
Record format
The format used to store table rows. The preceding examples use
values are
Compressed
as Dynamic.)
•
Chararacter set
The table default character set.
•
File-version
Version of format. Currently always 1.
MyISAM
•
Creation time
When the data file was created.
•
Recover time
When the index/data file was last reconstructed.
•
Status
— MyISAM Table-Maintenance Utility
9347072 Aug 19 11:47 person.MYD
6066176 Aug 19 11:47 person.MYI
output:
1 Last value:
306688 Deleted blocks:
306688 Deleted data:
4 Keyfile pointer (bytes):
9347072 Keyfile length:
4294967294 Max keyfile length:
54
Type Rec/key
long
varchar
no zeros
varchar
varchar
1 no zeros
2 no zeros
myisamchk
(index) file.
and Packed. (Packed
327
306688
6066176
17179868159
Root Blocksize
1 99328
512 3563520
512
306688 6065152
produces are given here. "Keyfile" refers to the
Fixed
corresponds to what
0
0
3
1024
1024
1024
length. Other possible
SHOW TABLE STATUS
reports