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Delete or Cleanup Backup History in sql server.

All backup history is stored in msdb database.
Following stored procedure can be execute with parameter, here we clean history before 30 days.   

USE msdb
@BeforeDays DATETIME
@BeforeDays = CONVERT(VARCHAR(10), DATEADD(dd, -30,GETDATE()), 101)
sp_delete_backuphistory @BeforeDays


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