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https://issues.apache.org/jira/browse/DERBY-1648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718934#action_12718934
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Kathey Marsden commented on DERBY-1648:
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There was a thread on derby-user with a proposed alternate solution to this
problem which might recover more data and in a more consistent state. The idea
is to provide a property which allows users to skip problematic log records so
they can boot and then drop the offending index or table.
http://www.nabble.com/Repairing-a-corrupted-database-with-invalid-checksum-on-page-td23956934.html#a23956934
> Create a tool for salvaging data from a database that will not boot.
> --------------------------------------------------------------------
>
> Key: DERBY-1648
> URL: https://issues.apache.org/jira/browse/DERBY-1648
> Project: Derby
> Issue Type: New Feature
> Components: Tools
> Affects Versions: 10.1.3.1
> Reporter: Kathey Marsden
>
> If a Derby database is corrupted by dual boot or for some other reason, it
> is really necessary to create a new database and transfer the data.
> Currently there is not a utility to do this.
> It would be good to have a tool which given a corrupted database would
> attempt to salvage the data it can by creating a new database and
> transferring the data while preserving the state of the original corrupted db
> for analysis
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