I have SQL Server 2008 R2. I installed SQL Server 2014 with the option:
Upgrade from SQL Server 2005, SQL Server 2008, SQL Server 2008 R2 or SQL Server 2012
and the process ended correctly.
But when running on localhost:
SELECT @@Version
I still have:
Microsoft SQL Server 2008 R2 (SP2) – 10.50.4042.0 (X64)
Sorry if the question is basic but I am very lost at the moment.
Best Answer
I found the problem: The installer I had was just for SQL Server Management Studio, as @MarkSinkinson pointed out.
If you have this same problem, verify you have the correct installation file (not SSMS only, or an incompatible Edition).
Other helpful things to check, from comments originally left on the question: