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Percona Data Recovery Tool for InnoDB - Documentation
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Percona's Data Recovery tool for InnoDB is a set of tools that can help recover data from lost or corrupted MySQL tables. It works by extracting the rows from the raw files.
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There are no guarantees, especially in case of corruption that affects the row storage areas of the files (as opposed to the file headers and other meta-data). It is a tedious process that requires an understanding of InnoDB's internal data storage format, C programming, and quite a bit of intuition and experience. If you are having trouble using the tools, Percona provides InnoDB data recovery services with a team of skilled and experienced technicians, and is available 24 hours a day to assist you.