--查看當前的存放位置
select database_id,name,physical_name AS CurrentLocation,state_desc,size from sys.master_files
where database_id=db_id(N'數(shù)據(jù)庫名');
--修改文件的存放位置下次啟動生效
--testDb為數(shù)據(jù)庫名，
alter database 數(shù)據(jù)庫名 modify file ( name = 文件名(不包含后綴), filename = '文件存儲路徑');
alter database 數(shù)據(jù)庫名 modify file ( name = 文件名(不包含后綴), filename = '文件存儲路徑');
eg.
alter database testDb modify file ( name = testDb, filename = 'G:\SQL_DATA\testDb\testDb.mdf');
alter database testDb modify file ( name = testDb_log, filename = 'G:\SQL_DATA\testDb\testdb_log.ldf');
--修改默認的數(shù)據(jù)庫文件存放位置（即時生效）
EXEC xp_instance_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software\Microsoft\MSSQLServer\MSSQLServer',
@value_name='DefaultData',
@type=REG_SZ,
@value='E:\MSSQL_MDF\data'
GO
--修改默認的日志文件存放位置<span style="font-family: Arial, Helvetica, sans-serif;">（即時生效）</span>
EXEC master..xp_instance_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='Software\Microsoft\MSSQLServer\MSSQLServer',
@value_name='DefaultLog',
@type=REG_SZ,
@value='E:\MSSQL_MDF\log'
GO
