I Ran the below 7 commands: --------------------------- ..\..\bin\myisamchk 06652v_replaytradesquotes ..\..\bin\myisamchk --recover --sort-index 06652v_replaytradesquotes ..\..\bin\myisamchk -dvvvi 06652v_replaytradesquotes ..\..\bin\myisampack 06652v_replaytradesquotes ..\..\bin\myisamchk -rq 06652v_replaytradesquotes ..\..\bin\myisamchk 06652v_replaytradesquotes check table 06652v_replaytradesquotes extended; The command's output: --------------------- F:\mysql-5.0.18-win32\data\test>..\..\bin\myisamchk 06652v_replaytradesquotes Checking MyISAM file: 06652v_replaytradesquotes Data records: 44037 Deleted blocks: 0 myisamchk: warning: Table is marked as crashed and last repair failed - check file-size - check record delete-chain - check key delete-chain - check index reference - check data record references index: 1 - check data record references index: 2 - check data record references index: 3 - check data record references index: 4 - check data record references index: 5 MyISAM-table '06652v_replaytradesquotes' is usable but should be fixed F:\mysql-5.0.18-win32\data\test> F:\mysql-5.0.18-win32\data\test>..\..\bin\myisamchk --recover --sort-index 06652v_replaytradesquotes - recovering (with sort) MyISAM-table '06652v_replaytradesquotes' Data records: 44037 - Fixing index 1 - Fixing index 2 - Fixing index 3 - Fixing index 4 - Fixing index 5 - Sorting index for MyISAM-table '06652v_replaytradesquotes' F:\mysql-5.0.18-win32\data\test> F:\mysql-5.0.18-win32\data\test>..\..\bin\myisamchk -dvvvi 06652v_replaytradesquotes MyISAM file: 06652v_replaytradesquotes Record format: Fixed length Character set: latin1_swedish_ci (8) File-version: 1 Creation time: 2006-03-01 11:56:51 Recover time: 2006-03-07 6:08:53 Status: checked,optimized keys,sorted index pages Data records: 44037 Deleted blocks: 0 Datafile parts: 44037 Deleted data: 0 Datafile pointer (bytes): 6 Keyfile pointer (bytes): 5 Datafile length: 3963330 Keyfile length: 869376 Max datafile length: 25332747903959038 Max keyfile length: 1125899906841599 Recordlength: 90 table description: Key Start Len Index Type Rec/key Root Blocksize 1 7 3 multip. uint24 prefix NULL 0 1024 1024 10 3 int24 NULL 0 2 4 3 multip. uint24 prefix NULL 0 353280 1024 3 13 4 multip. float prefix NULL 0 464896 1024 4 40 4 multip. float prefix NULL 0 560128 1024 5 64 4 multip. float prefix NULL 0 714752 1024 Field Start Length Nullpos Nullbit Type 1 1 3 2 4 3 1 2 3 7 3 1 4 4 10 3 1 8 5 13 4 1 16 6 17 4 1 32 7 21 4 1 64 8 25 4 1 128 9 29 4 2 1 10 33 4 2 2 11 37 3 2 4 12 40 4 2 8 13 44 4 2 16 14 48 4 2 32 15 52 4 2 64 16 56 4 2 128 17 60 4 3 1 18 64 4 3 2 19 68 4 3 4 20 72 4 3 8 21 76 4 3 16 22 80 4 3 32 23 84 4 3 64 24 88 3 3 128 F:\mysql-5.0.18-win32\data\test> F:\mysql-5.0.18-win32\data\test>..\..\bin\myisampack 06652v_replaytradesquotes Compressing 06652v_replaytradesquotes.MYD: (44037 records) - Calculating statistics - Compressing file 44000 <<>>>> F:\mysql-5.0.18-win32\data\test>..\..\bin\myisamchk -rq 06652v_replaytradesquotes - check record delete-chain - recovering (with sort) MyISAM-table '06652v_replaytradesquotes' Data records: 44037 - Fixing index 1 - Fixing index 2 - Fixing index 3 - Fixing index 4 - Fixing index 5 F:\mysql-5.0.18-win32\data\test> F:\mysql-5.0.18-win32\data\test>..\..\bin\myisamchk 06652v_replaytradesquotes Checking MyISAM file: 06652v_replaytradesquotes Data records: 44037 Deleted blocks: 0 - check file-size - check record delete-chain - check key delete-chain - check index reference - check data record references index: 1 - check data record references index: 2 - check data record references index: 3 - check data record references index: 4 - check data record references index: 5 F:\mysql-5.0.18-win32\data\test> mysql> check table 06652v_replaytradesquotes extended; +--------------------------------+-------+----------+----------+ | Table | Op | Msg_type | Msg_text | +--------------------------------+-------+----------+----------+ | test.06652v_replaytradesquotes | check | status | OK | +--------------------------------+-------+----------+----------+ 1 row in set (10.75 sec) mysql>