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Displaying posts with tag: corrupt (reset)

Incorrect Information in .FRM File of InnoDB Table
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MySQL organizes all the data as tables, irrespective of storage engine used. If you are using MySQL with InnoDB tables, these tables might get corrupt due to hardware faults, unexpected power failure, MySQL code errors, kernel bugs and other similar reasons. In such cases, InnoDB will typically give some errors indicating table corruption. As a data restoration source, you will need to use your latest database backup. But in case if backup fails to restore required information or doesn’t exist, you should scan your damaged database using third-party MySQL Repair or MySQL Recovery tools.

You might encounter the similar error message while accessing an InnoDB table:

“#1033 - Incorrect information in file: '"table name" .frm”

MySQL crashes after you receive this error





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Recovering MySQL Corruption in Bugzilla Database
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Bugzilla is a web-based bug tracking and testing application that is used by many software development companies. It extensively various databases including MySQL for its backend support especially because both of these applications are freely available. Although this tool runs pretty fine in most cases, it can get stalled when the some of the MySQL tables get corrupt. In such cases, you are unable to perform various tasks on the database. You can use the 'myisamchk' command with different parameters to repair MySQL database. If it does not work, then you should use a professional MySQL recovery software to recover MySQL database.

Discussing a similar situation in Bugzilla, consider you get the following error message while generating a bugs report:

"undef error - DBD::mysql::db



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Rectifying Corruption Issues in MyISAM Table in MySQL 5.0.22 Database
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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

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