📅  最后修改于: 2022-03-11 15:05:10.379000             🧑  作者: Mango
declare @rc int, @dir nvarchar(4000)
exec @rc = master.dbo.xp_instance_regread
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\Setup',
N'SQLPath',
@dir output, 'no_output'
select @dir AS InstallationDirectory