MySQL is the most popular open-source database in the world. It
  has the distinction of being the only database that is used in
  every continent. Yes, even Antartica!!! The reasons for such
  popularity is its availability, performance, robustness, etc. It
  provides three types of database engines, MyISAM, InnoDB, and
  MySQL Archive. Out of these, the MyISAM table is the default
  table type. It is fast, simple, and allows full-text searching.
  Although it is reliable, it can become corrupt and, thus,
  inaccessible following a system crash. You should use appropriate
  corrective measures to repair MySQL database. However, if you are
  not able to do so then you should use a third-party MySQL
  recovery software to do so.
  
  Consider a scenario wherein you have MySQL 5.0.22 database
  running in your system. You use it for MediaWiki installation
  that is reported as corrupt. When you try to repair the table,
  the following error message is displayed:
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