SQL Server查询数据库大小的代码

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SQL Server查询数据库大小的代码

1. SELECT a.name [文件名称]  
   
2.     ,cast(a.[size]*1.0/128 as decimal(12,1)) AS [文件设置大小(MB)]  
   
3.     ,CAST( fileproperty(s.name,'SpaceUsed')/(8*16.0) AS DECIMAL(12,1)) AS [文件所占空间(MB)]  
   
4.     ,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%]  
   
5.     ,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]  
   
6.     ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN '增量为固定大小'  
   
7.         WHEN A.growth > 0 AND is_percent_growth = 1 THEN '增量将用整数百分比表示'  
   
8.         ELSE '文件大小固定，不会增长' END AS [增量模式]  
   
9.     ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN cast(cast(a.growth*1.0/128as decimal(12,0)) AS VARCHAR)+'MB'  
   
10.         WHEN A.growth > 0 AND is_percent_growth = 1 THEN cast(cast(a.growth AS decimal(12,0)) AS VARCHAR)+'%'  
    
11.         ELSE '文件大小固定，不会增长' end AS [增长值(%或MB)]  
    
12.     ,a.physical_name AS [文件所在目录]  
    
13.     ,a.type_desc AS [文件类型]  
    
14. FROM sys.database_files  a  
    
15. INNER JOIN sys.sysfiles AS s ON a.[file_id]=s.fileid  
    
16. LEFT JOIN sys.dm_db_file_space_usage b ON a.[file_id]=b.[file_id]

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