What is best tool to compare two SQL Server databases (schema and data)? [duplicate]
I use schema and data comparison functionality built into the latest version Microsoft Visual Studio 2015 Community Edition (Free) or Professional / Premium / Ultimate edition. Works like a charm!
http://channel9.msdn.com/Events/Visual-Studio/Launch-2013/VS108
Red-Gate's SQL data comparison tool is my second alternative:
(source: spaanjaars.com)
I like Open DBDiff.
While not the most complete tool, it works great, it's free, and it's very easy to use.