How to check SQL Version

1. Open SQL Management Studio.

2. Connect to the database

3. Run the below query

Select @@version

Result

Microsoft SQL Server 2012 (SP1) - 11.0.3128.0 (X64)

            Dec 28 2012 20:23:12

            Copyright (c) Microsoft Corporation

            Enterprise Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: )