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https://issues.apache.org/jira/browse/DERBY-4328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744935#action_12744935
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Knut Anders Hatlen commented on DERBY-4328:
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The race condition I'm talking about is the following: If you shut down the 
database and reboot it with the newBootPassword attribute, this may or may not 
actually change the password, depending on whether or not someone else has 
rebooted the database in the meantime. As Dag mentions, this may even go 
unnoticed because of DERBY-2409.

> The Developer's Guide falsely claims that you can use 
> SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY to change the boot password on an 
> encrypted database.
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4328
>                 URL: https://issues.apache.org/jira/browse/DERBY-4328
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>             Fix For: 10.5.3.0
>
>         Attachments: derby-4328-01-aa-removeFalseReencryptionClaim.diff
>
>
> This claim is made in the section titled 'Changing the boot password'. If you 
> try to run the example, you get this error:
> CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY( 'bootPassword', 'Thursday' , 
> 'Saturday');
> ERROR 42Y03: 'SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY' is not recognized as a 
> function or procedure.
> The correct way to change the boot password is documented earlier on in the 
> section titled 'Encrypting databases with a new boot password'. We should 
> remove the section titled 'Changing the boot password'.

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