Track Database Growth-In Production Environments

--create table that stores the data
CREATE TABLE DatabaseFileSize
(
[database_id] INT,
[file_id] INT,
[file_type_desc] NVARCHAR(120),
[name] NVARCHAR(128),
[physical_name] NVARCHAR(520),
[state_desc] NVARCHAR(120),
[size] INT,
[max_size] INT,
[growth] INT,
[is_sparse] BIT,
[is_percent_growth] BIT,
[collect_date] DATETIME
)
GO
---create sp
CREATE PROC CollectDatabaseSize
AS
BEGIN
SET NOCOUNT ON
INSERT INTO DatabaseFileSize
(
[database_id],
[file_id],
[file_type_desc],
[name],
[physical_name],
[state_desc],
[size],
[max_size],
[growth],
[is_sparse],
[is_percent_growth],
[collect_date]
)
SELECT
[database_id],
[file_id],
[type_desc],
[name],
[physical_name],
[state_desc],
[size],
[max_size],
[growth],
[is_sparse],
[is_percent_growth],
GETDATE()
FROM sys.master_files
SET NOCOUNT OFF
END
GO

--------job to run on schedules--Change Database name inside
USE [msdb]
GO
/****** Object:  Job [Collect_Database_Size_Info]    Script Date: 02/13/2013 23:47:43 ******/
BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
/****** Object:  JobCategory [[Uncategorized (Local)]]]    Script Date: 02/13/2013 23:47:43 ******/
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N'[Uncategorized (Local)]' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', @name=N'[Uncategorized (Local)]'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
END
DECLARE @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N'Collect_Database_Size_Info',
@enabled=1,
@notify_level_eventlog=0,
@notify_level_email=0,
@notify_level_netsend=0,
@notify_level_page=0,
@delete_level=0,
@description=N'No description available.',
@category_name=N'[Uncategorized (Local)]',
@owner_login_name=N'sa', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
/****** Object:  Step [DBSize]    Script Date: 02/13/2013 23:47:44 ******/
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N'DBSize',
@step_id=1,
@cmdexec_success_code=0,
@on_success_action=1,
@on_success_step_id=0,
@on_fail_action=2,
@on_fail_step_id=0,
@retry_attempts=0,
@retry_interval=0,
@os_run_priority=0, @subsystem=N'TSQL',
@command=N'EXEC CollectDatabaseSize',
@database_name=N'AuditDB',
@flags=0
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, @start_step_id = 1
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id=@jobId, @name=N'DailyDBSize',
@enabled=1,
@freq_type=4,
@freq_interval=1,
@freq_subday_type=1,
@freq_subday_interval=0,
@freq_relative_interval=0,
@freq_recurrence_factor=0,
@active_start_date=20130213,
@active_end_date=99991231,
@active_start_time=0,
@active_end_time=235959,
@schedule_uid=N'445fb175-517b-4221-b6b8-6c6877dc7c24'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, @server_name = N'(local)'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave:

GO

-----------------Query to find out-----------------

--DB Size Growth Trend
SELECT
DB_NAME(database_id) AS DatabaseName,
collect_date AS CollectionDate,
((SUM(size))*8)/1024 AS DBSizeInMB
FROM DatabaseFileSize
GROUP BY database_id,collect_date
ORDER BY DatabaseName,collect_date

--DB File Size Growth Trend
SELECT DB_NAME(database_id) AS DatabaseName,
(CASE file_type_desc
WHEN 'ROWS' THEN 'Data'
WHEN 'LOG' THEN 'Log'
END) AS FileType,
physical_name AS PhysicalPath,
collect_date AS CollectionDate,
((SUM(size))*8)/1024 AS FileSizeInMB
FROM DatabaseFileSize
GROUP BY database_id,physical_name,file_type_desc,collect_date
ORDER BY DatabaseName,collect_date