Resolve "Unsupported Extension Used for Table" Error of MySQL


Most of the users upgrade the older version of the application to take the advantages of the new version. MySQL database is also upgraded for the same purpose. In MySQL, utility available to upgrade MySQL tables is known as mysql_upgrade. As upgradation has several advantages, it may also result into partial or complete loss of data from the tables.

Corruption or damage of MySQL tables can also occur and if the backup of the lost data is not available then it is really very hard to recover the lost data again. At that point of time you need advanced MySQL Database Repair application to repair the corrupted tables.

Let’s consider a practical scenario where when MySQL database is upgraded from rev 4.0.13 to rev 4.0.14 you observed that some of the important tables are corrupted. In addition to that when you attempted to open those tables below mentioned error messages are thrown –

"e-systemusr/local/mysql/bin# ./myisamchk -a
/usr/local/mysql/var/centralf/postscobe1.MYI

myisamchk: error: 138 when opening MyISAM-table
'/usr/local/mysql/var/centralf/postscobe1.MYI'

e-systemusr/local/mysql/bin#......."

Soon after the error message is occurred the records or data stored in the MySQL tables becomes inaccessible.

So, to rectify and repair the corruption of MySQL tables and make the data accessible, you need to follow some steps –

  • First try to use the inbuilt utilities to check and analyze the corruption in MySQL tables. For this try below mentioned command –
    Check Table tablename.
  • Once the severity of the corrupted MySQL database is known then try to repair it using below mentioned command –
    Repair Table tablename.

If the above mentioned utilities fail to repair the corrupted table of MySQL database then the only way to repair them efficiently is by using advanced MySQL Repair software. This software is very efficient and is incorporated with many ingenious features and functionalities that thoroughly scans the entire MySQL database and repairs and recovers the data’s stored in MySQL tables.

With interactive and graphical user-friendly interface using this tool is even easier. So, if you’re MySQL tables are not working properly and throwing some error messages then simply use MySQL Repair software and repair the database in seconds.