Update with inner join?

Question

I have two databases:

DB1 and DB2

How to do something like:

update myServer.DB1.dbo.hotels.Name = myServer.DB2.dbo.hotels.N         


        

Answer 1

example

update h1 
set h1.Name = h2.Name
from DB1.dbo.hotels.Name h1
join DB2.dbo.hotels  h2 on h1.Code= h2.Code
where h2.CountryCoe !=  h1.CountryCode