use master
    GO
    exec xp_regread 'HKEY_LOCAL_MACHINE','SOFTWARE\Microsoft\Microsoft SQL Server\110\Tools\Setup','ProductCode'
    exec xp_regread 'HKEY_LOCAL_MACHINE','SOFTWARE\Microsoft\Microsoft SQL Server\110\Tools\Setup','DigitalProductId'
    GO

 

 

 

https://www.cnblogs.com/seusoftware/p/4799493.html