The use of SpaceUsed property of the FILEPROPERTY function gives how much space is used also we can derive lot of other attributes of it such as free space and percentage of free space.
For other versions of SQL you can refer the below SQL.
DECLARE @command VARCHAR(5000) DECLARE @DBSpaceInfo TABLE ( ServerName VARCHAR(100), DatabaseName VARCHAR(100), PhysicalFileName NVARCHAR(520), FileSizeMB DECIMAL(10,2), SpaceUsedMB DECIMAL(10,2), FreeSpaceMB DECIMAL(10,2), FreeSpacePct varchar(8) ) SELECT @command = 'Use [' + '?' + '] SELECT @@servername as ServerName, ' + '''' + '?' + '''' + ' AS DatabaseName , name , convert(decimal(12,2),round(a.size/128.000,2)) as FileSizeMB , convert(decimal(12,2),round(fileproperty(a.name,'+''''+'SpaceUsed'+''''+')/128.000,2)) as SpaceUsedMB , convert(decimal(12,2),round((a.size-fileproperty(a.name,'+''''+'SpaceUsed'+''''+'))/128.000,2)) as FreeSpaceMB, CAST(100 * (CAST (((a.size/128.0 -CAST(FILEPROPERTY(a.name,' + '''' + 'SpaceUsed' + '''' + ' ) AS int)/128.0)/(a.size/128.0)) AS decimal(4,2))) AS varchar(8)) + ' + '''' + '%' + '''' + ' AS FreeSpacePct from sys.database_files a' INSERT INTO @DBSpaceInfo EXEC sp_MSForEachDB @command SELECT * from @DBSpaceInfo
For SQL 2000 you can refer the below sql using sysfiles system table.
DECLARE @command VARCHAR(5000) DECLARE @DBInfo TABLE ( ServerName VARCHAR(100), DatabaseName VARCHAR(100), PhysicalFileName NVARCHAR(520), FileSizeMB DECIMAL(10,2), SpaceUsedMB DECIMAL(10,2), FreeSpaceMB DECIMAL(10,2), FreeSpacePct varchar(8) ) SELECT @command = 'Use [' + '?' + '] SELECT @@servername as ServerName, ' + '''' + '?' + '''' + ' AS DatabaseName , filename , convert(decimal(12,2),round(a.size/128.000,2)) as FileSizeMB , convert(decimal(12,2),round(fileproperty(a.name,'+''''+'SpaceUsed'+''''+')/128.000,2)) as SpaceUsedMB , convert(decimal(12,2),round((a.size-fileproperty(a.name,'+''''+'SpaceUsed'+''''+'))/128.000,2)) as FreeSpaceMB, CAST(100 * (CAST (((a.size/128.0 -CAST(FILEPROPERTY(a.name,' + '''' + 'SpaceUsed' + '''' + ' ) AS int)/128.0)/(a.size/128.0)) AS decimal(4,2))) AS varchar(8)) + ' + '''' + '%' + '''' + ' AS FreeSpacePct from dbo.sysfiles a' INSERT INTO @DBInfo EXEC sp_MSForEachDB @command SELECT * from @DBInfo
