To Copy a table across DATABASE use this Query-
SELECT * INTO <Database>.dbo.<Table> FROM <Database>.dbo.<ExistingTable>
Example:
SELECT * INTO pubs.dbo.CustomersTemp FROM Northwind.dbo.Employees
Though the use of above Query will not will transfer Data and Schema but it will not transfer Indexes , Keys etc.
To do that you have to generate the Script of that table and then copy and execute this Script in the other Database.
