This was already a big help for me. Thank you. I think in this case I will try to create a concept which integrates the two databases.

At the moment our administration team sometimes requires to restart the server e.g. for installing updates. But you are right, this happens not very often. But one argument for the...

Thanks for the answer. But what would be a reasonable design.

One possiblility would be to fully integrate the two databases into one big database. Therefore the problem of the redundant...