Exec master.dbo.xp_fixeddrives

select * from [数据库名].[dbo].[sysfiles]
--转换文件大小单位为MB：
select name, convert(float,size) * (8192.0/1024.0)/1024. from [数据库名].dbo.sysfiles

Exec sp_spaceused

DBCC SQLPERF(LOGSPACE)

DBCC showfilestats  

SELECT a.name [文件名称]  ,cast(a.[size]*1.0/128 as decimal(12,1)) AS [文件设置大小(MB)]  ,CAST( fileproperty(s.name,'SpaceUsed')/(8*16.0) AS DECIMAL(12,1)) AS [文件所占空间(MB)]  ,CAST( (fileproperty(s.name,'SpaceUsed')/(8*16.0))/(s.size/(8*16.0))*100.0  AS DECIMAL(12,1)) AS [所占空间率%]  ,CASE WHEN A.growth =0 THEN '文件大小固定，不会增长' ELSE '文件将自动增长' end [增长模式]  ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN '增量为固定大小'  WHEN A.growth > 0 AND is_percent_growth = 1 THEN '增量将用整数百分比表示'  ELSE '文件大小固定，不会增长' END AS [增量模式]  ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN cast(cast(a.growth*1.0/128as decimal(12,0)) AS VARCHAR)+'MB'  WHEN A.growth > 0 AND is_percent_growth = 1 THEN cast(cast(a.growth AS decimal(12,0)) AS VARCHAR)+'%'  ELSE '文件大小固定，不会增长' end AS [增长值(%或MB)]  ,a.physical_name AS [文件所在目录]  ,a.type_desc AS [文件类型]
FROM sys.database_files  a
INNER JOIN sys.sysfiles AS s ON a.[file_id]=s.fileid
LEFT JOIN sys.dm_db_file_space_usage b ON a.[file_id]=b.[file_id]  

select * from dba_data_files;

SELECT UPPER(F.TABLESPACE_NAME) "表空间名",D.TOT_GROOTTE_MB "表空间大小(M)",D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB * 100,2),'990.99') || '%' "使用比",F.TOTAL_BYTES "空闲空间(M)",F.MAX_BYTES "最大块(M)"FROM (SELECT TABLESPACE_NAME,ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_BYTES,ROUND(MAX(BYTES) / (1024 * 1024), 2) MAX_BYTESFROM SYS.DBA_FREE_SPACEGROUP BY TABLESPACE_NAME) F,(SELECT DD.TABLESPACE_NAME,ROUND(SUM(DD.BYTES) / (1024 * 1024), 2) TOT_GROOTTE_MBFROM SYS.DBA_DATA_FILES DDGROUP BY DD.TABLESPACE_NAME) DWHERE D.TABLESPACE_NAME = F.TABLESPACE_NAMEORDER BY 1;