subject: How to rectify ERROR 1146 (42S02) error in a MySQL database [print this page] How to rectify ERROR 1146 (42S02) error in a MySQL database
MySQL is a relational database management system (MySQL) that provides multi-user access to many databases. MySQL database is used by some of the most high-traffic websites, such as Google, Wikipedia, Facebook, YouTube, etc. MySQL provides several distinguished features, such as multiple storage engines, commit grouping, etc. However, when you try to open a database table, it fails to do so. This may happen if the database that you are trying to access is corrupt. It can get corrupt due to various reasons, such as power surges, virus infections, In such situations, you should try to take appropriate measures to repair MySQL database. However, if you are unable to do so, then you should use a third-party MySQL repair software to do the needful.
Consider a scenario wherein you start the MySQL server and the following error message is displayed.
"Default storage engine is not available."
When you encounter the aforementioned error message, you reinstall the server without removing its data directory. It runs fine when you run the MySQL server. But, when you attempt to open any table, it fails to open and an error message is displayed, that is:
When you use the mysqlcheck command to solve the issue, the aforementioned error message still appears.
Cause
The error message appears because of having a corrupt database. And the MySQL database can get corrupt due to various reasons, such as virus infections, abrupt shutdown while the database is open, human errors, etc.
Resolution
First of all, you should backup the corrupted table to avoid any further damage to the database. Then, to repair the corrupted database you should use the Repair command to repair the corrupted table. In this command, you can use either the Quick or the Extended clause. As a last resort, check if you have a clean and updated backup. If yes, then restore the database with its backup.
However, there may be chances that the backup is not updated or the issue is still not resolved. In such cases, you should use a third-party mysql repair software to repair MySQL database. Such tools are read-only in nature that use fast yet sophisticated scanning algorithms to recover MySQL file.
MySQL Database Recovery software is a mysql database repair software that can recover the MySQL database. It can recover various types of MySQL database files, such as .ibdata, .ibd, .frm, .myd, .myi, and .frm created in MySQL 5.x or 4.x. It is compatible with Window 7, Vista, 2003 Server, XP, and Server 2000.