一、檢視磁碟使用情況

--磁碟使用情況
WITH T1 AS (
SELECT DISTINCT
REPLACE(vs.volume_mount_point,':\','') AS Drive_Name ,
CAST(vs.total_bytes / 1024.0 / 1024 / 1024 AS NUMERIC(18,2)) AS Total_Space_GB ,
CAST(vs.available_bytes / 1024.0 / 1024 / 1024  AS NUMERIC(18,2)) AS Free_Space_GB
FROM    sys.master_files AS f
CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.file_id) AS vs
)
SELECT
Drive_Name,
Total_Space_GB,
Total_Space_GB-Free_Space_GB AS Used_Space_GB,
Free_Space_GB,
CAST(Free_Space_GB*100/Total_Space_GB AS NUMERIC(18,2)) AS Free_Space_Percent
FROM T1
 

二、資料庫空間使用情況

--資料庫空間使用情況
USE TEMP_DB
 
GO
 
SELECT a.name as 邏輯檔名, size/128/1024 [totalspace檔案大小(G)], 
 
    FILEPROPERTY(a.name, 'SpaceUsed')/128/1024 [usedspace已用空間(G)],
 
    size/128/1024 - FILEPROPERTY(a.name, 'SpaceUsed')/128/1024 [未用空間(G)],
 
    FILEPROPERTY(a.name, 'SpaceUsed')*100.0/size [使用率(%)]
 
FROM sys.database_files a cross join (select recovery_model_desc, log_reuse_wait,log_reuse_wait_desc,is_auto_shrink_on  from sys.databases where name=DB_NAME())b
 

三、各表空間佔用情況

--各表空間佔用情況
CREATE TABLE #T (NAME nvarchar(100),ROWS char(20),reserved varchar(18) ,Data varchar(18) ,index_size varchar(18) ,Unused varchar(18) ) 
GO 
INSERT #T EXEC SP_MSFOREACHTABLE 'EXEC sp_spaceused "?"' 
SELECT * FROM #T ORDER BY CONVERT(INT,REPLACE(DATA,'kb','')) DESC

四、收縮日誌檔案大小

DBCC SHRINKFILE (N'TEMP_DB_log' , 1, TRUNCATEONLY)--收縮日誌檔案大小到1M
 

五、檢視資料庫總空間

--1.檢視資料庫總空間，已用空間，未用空間，使用率
USE BDL
 
GO
 
SELECT a.name as 邏輯檔名, size/128 [totalspace檔案大小(兆)], 
 
    FILEPROPERTY(a.name, 'SpaceUsed')/128 [usedspace已用空間(兆)],
 
    size/128 - FILEPROPERTY(a.name, 'SpaceUsed')/128 [未用空間(兆)],
 
    FILEPROPERTY(a.name, 'SpaceUsed')*100.0/size [使用率(%)]
 
FROM sys.database_files a cross join (select recovery_model_desc, log_reuse_wait,log_reuse_wait_desc,is_auto_shrink_on  from sys.databases where name=DB_NAME())b
 
WHERE type=0

六、回收磁碟空間

--2.進行回收
declare @usedspace int ,@totalspace int
 
select @usedspace= 200530,@totalspace =407006
 
while @totalspace> @usedspace
 
begin
 
	set @totalspace= @totalspace-5 *1024
 
	DBCC SHRINKFILE( BDL,@totalspace )
 
end