sqlserver数据库获取数据库信息

ms sql server 获取当前数据库文件等信息，适用于多个版本：

select dbf.file_id as fileid
    , dbf.name as [filename]
    , s.filename as filelocation
    , cast(dbf.size/128.0 as decimal(19,2)) as filesizemb
    , cast(cast(fileproperty(dbf.name, 'spaceused') as int)/128.0 as decimal(19,2)) as spaceusedmb
    , cast(dbf.size/128.0 - cast(fileproperty(dbf.name, 'spaceused') as int)/128.0 as decimal(19,2)) as availablespacemb
    , cast((dbf.size / 128.0 - (fileproperty(dbf.name, 'spaceused') / 128.0)) / (dbf.size / 128.0) * 100 as decimal(19,2)) as [%freespace]
    , dbf.growth / 128 as filegrowthmb
    , f.name as filegroupname
from sys.database_files dbf
    inner join sys.sysfiles s on dbf.name = s.name
    left join sys.filegroups f on dbf.data_space_id = f.data_space_id
order by dbf.name;

例如我们在某个database上，执行结果是：

xxx_standard_data   
d:\program files\sqlserver2012\mssql11.mssqlserver\mssql\data\wolf_wanzheng.mdf    2000.00    1286.38    713.63    35.68    0    primary
xxx_standard_log   
d:\program files\sqlserver2012\mssql11.mssqlserver\mssql\data\wolf_wanzheng_2.ldf    157.19    2.47    154.72    98.43    0    null
xxx_temp2_data   
d:\program files\sqlserver2012\mssql11.mssqlserver\mssql\data\wolf_wanzheng_1.ndf    500.00    0.06    499.94    99.99    0    temp2
 xxx_temp2_log   
d:\program files\sqlserver2012\mssql11.mssqlserver\mssql\data\wolf_wanzheng_3.ldf    142.88    2.25    140.63    98.43    0    null