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How to handle wrong page type in external pages

First step of successful MySQL data recovery is to find InnoDB pages with your data. Let’s call it first, because prerequisite steps are already done. InnoDB page type is a two bytes integer stored in the header of a page. For MySQL data recovery two are important: FIL_PAGE_INDEX. Pages of this type are nodes of […]

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Presenting TwinDB Data Recovery Toolkit on #SFMySQL Meetup

On 5 November, I’ll be speaking at #SFMySQL Meetup about Data Recovery Software for MySQL Add Slipped & DROP’d your TABLE? Recover w/TwinDB’s Undrop for InnoDB toolkit to your calendar. There will be a demo and if you want to try to undrop a table yourself bring in a laptop with Linux. Download the latest […]

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Recover after DROP TABLE, innodb_file_per_table is ON

UPDATE (01/01/2017): We stopped further development of undrop-for-innodb and do not support its open source versions. Introduction In the previous post we described the situation when TwinDB recovery toolkit can be used to recover accidentaly dropped table in the case innodb_file_per_table=OFF setting. In this post we will show how to recover MySQL table or database […]

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Recover after DROP TABLE, innodb_file_per_table is OFF

UPDATE (01/01/2017): We stopped further development of undrop-for-innodb and do not support its open source versions. Introduction Human mistakes are inevitable. Wrong “DROP DATABASE” or “DROP TABLE” may destroy critical data on the MySQL server. Backups would help however they’re not always available. This situation is frightening but not hopeless. In many cases it is […]

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