sql server 版本号（sql version number）

8.0 -> sql server 2000

9.0 -> sql server 2005

10.0 -> sql server 2008

10.5 -> sql server 2008 R2

11.0 -> sql server 2012

12.0 -> sql server 2014

其它：select @@version

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Microsoft SQL Server 2008 R2 (SP2) - 10.50.4000.0 (X64)
    Jun 28 2012 08:36:30
    Copyright (c) Microsoft Corporation
    Enterprise Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1) (Hypervisor)


(1 row(s) affected)

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Microsoft SQL Server 2012 (SP1) - 11.0.3000.0 (X64)
    Oct 19 2012 13:38:57
    Copyright (c) Microsoft Corporation
    Enterprise Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)


(1 row(s) affected)