SQL Compare

SQL Compare is the industry-standard tool for comparing
and synchronizing SQL Server database schemas. It's used
by over 150,000 developers, DBAs and test engineers
worldwide because it's easy to use, it's fast,
and it saves time.
Whether you are working
with live databases, database snapshots or object SQL
scripts under source control, SQL Compare will help
you compare and synchronize database changes quickly, simply
and with zero errors.
Read the whitepaper on
database development and discover how SQL Compare can
save you astonishing amounts of time, whatever development
model your team prefers to use. SQL Compare
ensures accurate, fast results with maximum end-user flexibility.