确定SQL Server数据库大小

SQL Server 2005/2008 Express版本每个数据库的限制为4 GB。 据我所知,数据库引擎只考虑数据,因此不包括日志文件,未使用的空间和索引大小。

获取MDF文件的长度不应根据SQL Server限制给出正确的数据库大小。 我的问题是如何获得数据库的大小?

注释sp_spaceused

的sp_helpdb

不需要循环,不像sp_spaceused。

根据SQL2000的帮助,sp_spaceused包含数据和索引。

这个脚本应该这样做:

CREATE TABLE #t (name SYSNAME, rows CHAR(11), reserved VARCHAR(18), data VARCHAR(18), index_size VARCHAR(18), unused VARCHAR(18)) EXEC sp_msforeachtable 'INSERT INTO #t EXEC sp_spaceused ''?''' -- SELECT * FROM #t ORDER BY name -- SELECT name, CONVERT(INT, SUBSTRING(data, 1, LEN(data)-3)) FROM #t ORDER BY name SELECT SUM(CONVERT(INT, SUBSTRING(data, 1, LEN(data)-3))) FROM #t DROP TABLE #t 

在SQL Management Studio中,右键单击数据库并从上下文菜单中select“属性”。 看看“大小”的数字。

最好的解决办法是使用sys.sysfiles视图计算每个数据库文件的大小,每个页面的大小为8 KB,如下所示:

 USE [myDatabase] GO SELECT [size] * 8 , [filename] FROM sysfiles 

[field]列表示文件的大小,以页为单位( MSDN参考sysfiles )。

你会看到至less有两个文件(MDF和LDF):这些文件的总和会给你整个数据库的正确大小…

我一直喜欢直接去追求:

 SELECT DB_NAME( dbid ) AS DatabaseName, CAST( ( SUM( size ) * 8 ) / ( 1024.0 * 1024.0 ) AS decimal( 10, 2 ) ) AS DbSizeGb FROM sys.sysaltfiles GROUP BY DB_NAME( dbid ) 

你也可以用这个老式的…

 set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go DECLARE @iCount int, @iMax int, @DatabaseName varchar(200), @SQL varchar (8000) Select NAME, DBID, crdate, filename, version INTO #TEMP from MAster..SYSDatabASES SELECT @iCount = Count(DBID) FROM #TEMP Select @SQL='Create Table ##iFile1 ( DBName varchar( 200) NULL, Fileid INT, FileGroup int, TotalExtents INT , USedExtents INT , Name varchar(100), vFile varchar (300), AllocatedSpace int NUll, UsedSpace int Null, PercentageFree int Null ) '+ char(10) exec (@SQL) Create Table ##iTotals ( ServerName varchar(100), DBName varchar( 200) NULL, FileType varchar(10),Fileid INT, FileGroup int, TotalExtents INT , USedExtents INT , Name varchar(100), vFile varchar (300), AllocatedSpace int NUll, UsedSpace int Null, PercentageFree int Null ) WHILE @iCount>0 BEGIN SELECT @iMax =Max(dbid) FROM #TEMP Select @DatabaseName = Name FROM #TEMP where dbid =@iMax SELECT @SQL = 'INSERT INTO ##iFile1(Fileid , FileGroup , TotalExtents , USedExtents , Name , vFile) EXEC (''USE [' + @DatabaseName + '] DBCC showfilestats'') ' + char(10) Print (@SQL) EXEC (@SQL) SELECT @SQL = 'UPDATE ##iFile1 SET DBName ='''+ @DatabaseName +''' WHERE DBName IS NULL' EXEC (@SQL) DELETE FROM #TEMP WHERE dbid =@iMax Select @iCount =@iCount -1 END UPDATE ##iFile1 SET AllocatedSpace = (TotalExtents * 64.0 / 1024.0 ), UsedSpace =(USedExtents * 64.0 / 1024.0 ) UPDATE ##iFile1 SET PercentageFree = 100-Convert(float,UsedSpace)/Convert(float,AllocatedSpace )* 100 WHERE USEDSPACE>0 CREATE TABLE #logspace ( DBName varchar( 100), LogSize float, PrcntUsed float, status int ) INSERT INTO #logspace EXEC ('DBCC sqlperf( logspace)') INSERT INTO ##iTotals(ServerName, DBName, FileType,Name, vFile,PercentageFree,AllocatedSpace) select @@ServerName ,DBNAME, 'Data' as FileType,Name, vFile, PercentageFree , AllocatedSpace from ##iFile1 UNION select @@ServerName ,DBNAME, 'Log' as FileType ,DBName,'' as vFile ,PrcntUsed , LogSize from #logspace Select * from ##iTotals select ServerName ,DBNAME, FileType, Sum( AllocatedSpace) as AllocatedSpaceMB from ##iTotals Group By ServerName ,DBNAME, FileType Order By ServerName ,DBNAME, FileType select ServerName ,DBNAME, Sum( AllocatedSpace) as AllocatedSpaceMB from ##iTotals Group By ServerName ,DBNAME Order By ServerName ,DBNAME drop table ##iFile1 drop table #logspace drop table #TEMP drop table ##iTotals