Wednesday, January 13, 2010

Fixing “Key in wrong position...” Error Message

MySQL database table, a major storage component for all MySQL users to store their records, can be corrupted due to various factors. Few of the most common include improper system shutdown, fatal virus attacks, file system damage, application malfunction, and human errors. An error message while accessing the table, clearly indicates that it has been corrupted. This error message can be a huge cause of concern in case the table contains some critical data. To overcome such table corruption scenarios, you can always use an adequate database backup. But if in case, the database backup gets damaged or is inaccessible, then you will need to repair the corrupt table. For comprehensive repair, you will need to opt for an advanced third-party Repair MySQL Database application.

Consider a practical scenario, where you attempt to open the table and an error message pops up stating that the table is corrupt. Furthermore, when you attempt to run CHECK TABLE command on that table, you receive another error message:

“Employee check error Key in wrong position at page 4096
Employee check error Corrupt”

After the above error message appears, the data stored in the table becomes inaccessible. You encounter the same error message each time you attempt to run the CHECK TABLE command.

Cause:

The above error message appears when the Employee table is severely corrupted.

Resolution:

The resolution for the above error message is restoration from an updated backup. But, there are many case studies where the database user forgets to create a database backup on regular basis. For such situations, these users you can use an advanced MySQL Database Repair application.

A third-party MySQL Repair utility performs systematic repair of corrupt MySQL tables by using effective scanning methods. The tool can be easily understood as it comes along with highly interactive user-interface and documentation. The repair application does not overwrite, delete, or modify the original data stored in the table. The software allows you to save the repaired table on default or new destination.

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