以下僅為參照，如果有多個實例，可能會有些許不同：
本環境是SQL Server 2005 Standard Version 64-bit 和 SQL Server 2008 Standard Version 64-bit 雙實例同時安裝在一個
Windows Server 2008 Standard Version 64-bit OS上：
代碼
復制代碼 代碼如下:
Windows Server 2008 Standard Version 64-bit
SQL Server 2005 Standard Version 64-bit
查詢用戶庫Data文件默認路徑：
DECLARE @DefaultData VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='DefaultData',
@DefaultData=@DefaultData OUTPUT
SELECT @DefaultData
查詢用戶庫Log文件默認路徑：
DECLARE @DefaultLog VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='DefaultLog',
@DefaultLog=@DefaultLog OUTPUT
SELECT @DefaultLog
查詢用戶庫備份文件默認路徑：
DECLARE @BackupDirectory VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='BackupDirectory',
@BackupDirectory=@BackupDirectory OUTPUT
SELECT @BackupDirectory
修改用戶庫Data文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='DefaultData',
@type='REG_SZ',
@value='D:/SQL2005/Data'
修改用戶庫Log文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='DefaultLog',
@type='REG_SZ',
@value='D:/SQL2005/Log'
修改用戶庫備份文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL.1/MSSQLServer',
@value_name='BackupDirectory',
@type='REG_SZ',
@value='D:/SQL2005/DBBak'
復制代碼 代碼如下:
Windows Server 2008 Standard Version 64-bit
SQL Server 2008 Standard Version 64-bit
查詢用戶庫Data文件默認路徑：
DECLARE @DefaultData VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='DefaultData',
@DefaultData=@DefaultData OUTPUT
SELECT @DefaultData
查詢用戶庫Log文件默認路徑：
DECLARE @DefaultLog VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='DefaultLog',
@DefaultLog=@DefaultLog OUTPUT
SELECT @DefaultLog
查詢用戶庫備份文件默認路徑：
DECLARE @BackupDirectory VARCHAR(100)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='BackupDirectory',
@BackupDirectory=@BackupDirectory OUTPUT
SELECT @BackupDirectory
修改用戶庫Data文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='DefaultData',
@type='REG_SZ',
@value='D:/SQL2008/Data'
修改用戶庫Log文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='DefaultLog',
@type='REG_SZ',
@value='D:/SQL2008/Log'
修改用戶庫備份文件默認路徑：
EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software/Microsoft/Microsoft SQL Server/MSSQL10.SQL2008/MSSQLServer',
@value_name='BackupDirectory',
@type='REG_SZ',
@value='D:/SQL2008/DBBak'
