Subject nbackup database made database inaccessible
Author
Hello,

I have encountered a serious problem with nbackup.
During a automated nbackup something happened with the .delta file and the database was inaccessible until i luckily found the command "nbackup.exe -U" which addressed the problem. Nothing else worked.
The error message was that the .delta file is missing.

The nbackup was executed from JayBird.
Firebird 2.5.3 on Windows.

What causes this? Is it risky to run a nbackup?

BR,

Hugo