Thanks for the reply !
I thought those two errors are connected and caused by one thing but apparently I did two separate mistakes there : ) The query works fine now. I fixed also the part with encoding to utf-8 and works smoothly. Thank you very much !
exactly, for backup on LTO drive.
yes, we want to remove it then, because of the number of projects we have.
in the same way, it would be nice to have the other way, a restore function. So to get the Project back into the database.