Copy table from different database

Hi

If I want to copy an existing table in the same DB I would use something like this

INSERT MyTable_Backup ON EXISTING UPDATE WITH AUTO NAME SELECT * FROM MyTable

Assuming I can lookup the name of the server and the database I want to copy from

e.g.

Server = S002

DB = MyDB21

How can I use that to copy from a different database, or even a different server?

Thanks