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How to Check Monthly Growth of Database in SQL Server (Database Growth :last 6 month database grow)



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Below is the script I have come up with database growth of database. It will give the last 6 month database growth for all database of particular instance.

DECLARE @endDate datetime, @months smallint;
SET @endDate = GetDate();  -- Include in the statistic all backups from today
SET @months = 6;           -- back to the last 6 months.

;WITH HIST AS
   (SELECT BS.database_name AS DatabaseName
          ,YEAR(BS.backup_start_date) * 100
           + MONTH(BS.backup_start_date) AS YearMonth
          ,CONVERT(numeric(10, 1), MIN(BF.file_size / 1048576.0)) AS MinSizeMB
          ,CONVERT(numeric(10, 1), MAX(BF.file_size / 1048576.0)) AS MaxSizeMB
          ,CONVERT(numeric(10, 1), AVG(BF.file_size / 1048576.0)) AS AvgSizeMB
    FROM msdb.dbo.backupset as BS
         INNER JOIN
         msdb.dbo.backupfile AS BF
             ON BS.backup_set_id = BF.backup_set_id
    WHERE NOT BS.database_name IN
              ('master', 'msdb', 'model', 'tempdb')
          AND BF.file_type = 'D'
          AND BS.backup_start_date BETWEEN DATEADD(mm, - @months, @endDate) AND @endDate
    GROUP BY BS.database_name
            ,YEAR(BS.backup_start_date)
            ,MONTH(BS.backup_start_date))
SELECT MAIN.DatabaseName
      ,MAIN.YearMonth
      ,MAIN.MinSizeMB
      ,MAIN.MaxSizeMB
      ,MAIN.AvgSizeMB
      ,MAIN.AvgSizeMB 
       - (SELECT TOP 1 SUB.AvgSizeMB
          FROM HIST AS SUB
          WHERE SUB.DatabaseName = MAIN.DatabaseName
                AND SUB.YearMonth < MAIN.YearMonth
          ORDER BY SUB.YearMonth DESC) AS GrowthMB
FROM HIST AS MAIN
ORDER BY MAIN.DatabaseName
        ,MAIN.YearMonth



--SECTION 1 BEGIN

WITH BackupsSize AS(
SELECT TOP 1000
      rn = ROW_NUMBER() OVER (ORDER BY DATEPART(year,[backup_start_date]) ASC, DATEPART(month,[backup_start_date]) ASC)
    , [Year]  = DATEPART(year,[backup_start_date])
    , [Month] = DATEPART(month,[backup_start_date])
    , [Backup Size GB] = CONVERT(DECIMAL(10,2),ROUND(AVG([backup_size]/1024/1024/1024),4))
    , [Compressed Backup Size GB] = CONVERT(DECIMAL(10,2),ROUND(AVG([compressed_backup_size]/1024/1024/1024),4))
FROM 
    msdb.dbo.backupset
WHERE 
    [database_name] = N'XXXX'
AND [type] = 'D'
AND backup_start_date BETWEEN DATEADD(mm, - 13, GETDATE()) AND GETDATE()
GROUP BY 
    [database_name]
    , DATEPART(yyyy,[backup_start_date])
    , DATEPART(mm, [backup_start_date])
ORDER BY [Year],[Month]) 
--SECTION 1 END
 
--SECTION 2 BEGIN
SELECT 
   b.Year,
   b.Month,
   b.[Backup Size GB],
   0 AS deltaNormal,
   b.[Compressed Backup Size GB],
   0 AS deltaCompressed
FROM BackupsSize b
WHERE b.rn = 1
UNION
SELECT 
   b.Year,
   b.Month,
   b.[Backup Size GB],
   b.[Backup Size GB] - d.[Backup Size GB] AS deltaNormal,
   b.[Compressed Backup Size GB],
   b.[Compressed Backup Size GB] - d.[Compressed Backup Size GB] AS deltaCompressed
FROM BackupsSize b
CROSS APPLY (
   SELECT bs.[Backup Size GB],bs.[Compressed Backup Size GB]
   FROM BackupsSize bs
   WHERE bs.rn = b.rn - 1
) AS d
--SECTION 2 END



Method:2