Hi Bob, The Derby program relies on files that make up a Derby database to get created in a certain way, and for those files to remain untouched by other programs or actions.
It seems something has interfered with your database. We have no way of telling what that is/was - only you can do this by diligently checking your system and your application. Did you recently change the funcionality? Did your system experience any kind of malfunction? (check the windows event logs). I can think of programs such as encryption tools, security programs, or manual efforts (accidental or not) that could mess with file permissions/ownership (which is what the error message seems to suggest). One thing you can do, is check on the permissions of each file. You can look up how to do this by a search for your OS in your favorite search engine. Judging by the c:/ reference you are on some MS-Windows OS. If you have a shell tool like cygwin you could do 'ls -al'. Otherwise, the only way I know is to check on each file using windows explorer - checking on 'properties' for each file and opening the 'security' tab. Perhaps your search engine finds a more efficient way. You're looking to compare the file ownership and permissions. They should all be the same for all the .dat files. Another check you can do is the consistency check ( http://wiki.apache.org/db-derby/DatabaseConsistencyCheck). Although I suspect this will pop the same file. For more information about corrupted databases, see: https://wiki.apache.org/db-derby/DatabaseCorruption. HTH, Myrna On Mon, Sep 22, 2014 at 1:23 PM, Bob M <rgmatth...@orcon.net.nz> wrote: > Hi Peter > > Permission or attributes - maybe............. > > Could you spell out how I check these? > > What puzzles me is that I did have my application working at an earlier > stage and I am having difficulty understanding why I am now getting a > series > of error messages > > Bob M > > > > -- > View this message in context: > http://apache-database.10148.n7.nabble.com/Another-error-to-be-explained-tp142334p142340.html > Sent from the Apache Derby Users mailing list archive at Nabble.com. >
