title: Unknown behaviour of mysql
body: <p>I have a server in my company with mysql installed(on centos machine) in it. It already had data values inserted in it.</p>
  
  <p>This morning when I tried to access my web application(which is connected by mysql) it gives me a database error.</p>
  
  <p>Then I restarted mysql, I checked my database one table is automatically deleted and only 10 rows are inserted with all column value 1. In other table only one column is changed with same value on all row of that column.</p>
  
  <p>I tried to run insert query but it shows timeout.And also phpmyadmin is slow.</p>
  
  <p>I can guess that mysql is slow because mysql memory is full <strong>but why it deleted the row from one table and changed only one column of other table??</strong></p>
  
  <p><strong>And is it possible to retreive my old database?</strong></p>
  
  <p>Any help would be apreciated.</p>