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https://issues.apache.org/jira/browse/DERBY-1648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Sitsky updated DERBY-1648:
--------------------------------

    Attachment: derby.txt

Here is the patch to the code which I used successfully to fix a corrupted 
Derby database.  In this instance, I was lucky, the corruption was on a single 
page, that was just used by an index, so there was no data loss.


> 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
>         Attachments: derby.txt
>
>
> 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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