In an answer to Strange new database 'Data.StackExchangePOC' is messing up cross-site SEDE queries our DBA extraordinair Aaron Bertrand suggested to have a feature request for a view to list databases that can safely be used in a multi-database query. For context, multi-database queries are possi...

I've built something you will hopefully find useful, as it will present a list of databases (and a bunch of additional information) that you can use for cross-database queries. Before I explain further, though, I'm going to start with some caveats: Caveats Due to the principle of least disrupti...