> We have a strange thing on a firebird 3.0.2 database
> One only Machine on Windows (Microsoft Windows Embedded Standard)

> We lost a record in a database

> Circumstances :
> ------------------------
> Power off of the computer in activity
> After restart our program doesn't work ( Qt Program )

Is ForcedWrites ON or OFF ?

> No problem on validation

Does you run full validation ? Could you show gfix command line ?

Do you have copy of "broken" database ?

> Backup and restore ok without problem
> and we find that a main record in a table is not exist anymore

I guess there is no FK constraints to that "main table" ?

Regards,
Vlad