Remove Database Backup Files

Using SQL Job via Powershell script to remove backup files older than x days.

Create the job…

USE [msdb]
GO

BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0

IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N'Database Maintenance' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', @name=N'Database Maintenance'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

END

DECLARE @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N'Purge Old Backups', 
		@enabled=1, 
		@notify_level_eventlog=0, 
		@notify_level_email=0, 
		@notify_level_netsend=0, 
		@notify_level_page=0, 
		@delete_level=0, 
		@description=N'Uses Powershell to remove backups older than X days', 
		@category_name=N'Database Maintenance', 
		@owner_login_name=N'sa', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N'Purge Files', 
		@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'PowerShell', 
		@command=N'$Path = "M:\MSSQL\DatabaseBackups\"
$Daysback = “-30”
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Extension -eq ".bak" } | Remove-Item -Recurse -ErrorAction  SilentlyContinue

', 
		@database_name=N'master', 
		@flags=48
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'Daily', 
		@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=20171122, 
		@active_end_date=99991231, 
		@active_start_time=0, 
		@active_end_time=235959

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

Powershell script to remove all .bak files…

$Path = "M:\MSSQL\DatabaseBackups\"
$Daysback = “-30”
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Extension -eq ".bak" } | Remove-Item -Recurse -ErrorAction  SilentlyContinue

The following script delete all files…

$Path = "D:\Backups\"
$DaysToKeep = "-5"
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($DaysToKeep)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete } | Remove-Item -Recurse

The following script delete .7z file from one folder and .bak from another folder on the same drive.

$Path = "D:\MSSQL\DBBackups\Full\"
$Daysback = “-1”
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Extension -eq ".7z" } | Remove-Item -Recurse -ErrorAction  SilentlyContinue

$Path = "D:\MSSQL\DBBackups\Logs\"
$Daysback = “-1”
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Extension -eq ".bak" } | Remove-Item -Recurse -ErrorAction  SilentlyContinue

Note:

Make sure certain account have modify permission to folder.

• Server123\Backup Operators
• SQL Agent

Source:

SQL SERVER – PowerShell Script – Delete Old Backup Files in SQL Express