Many databases has the feature to define computed / automatic columns, but there is no possibility to define this in DbVis create / edtit table dialog.Ist it possible to extend the dialog to do this?
sorry for the delay, ich was in holyday some days.
You can design computed colums in some DB's - in my case Oracle (see https://www.oracle.com/webfolder/technetwork/de/community/dbadmin/tipps/virtual_columns/index.html) and MSSQL (see https://docs.microsoft.com/en-us/sql/relational-databases/tables/specify-computed-columns-in-a-table?view=sql-server-2017).
In the alter table dialog you can see such columns (red frame), but it's not posible to edit / create this:
Can you please share some more details what you are looking for?
Also, what database are you using?