如何获取近24小时内没有备份的DB

-- Find DBs that have not been backed up in last 24 hour
SELECT name AS database_name
, backup_finish_date
, coalesce(type,'NO BACKUP') AS last_backup_type
FROM
(
SELECT database_name,backup_finish_date,
CASE
WHEN type = 'D' THEN 'Full'
WHEN type = 'I' THEN 'Differential'
WHEN type = 'L' THEN 'Transaction Log'
WHEN type = 'F' THEN 'File'
WHEN type = 'G' THEN 'Differential File'
WHEN type = 'P' THEN 'Partial'
WHEN type = 'Q' THEN 'Differential partial'
END AS type
FROM msdb.dbo.backupset x
WHERE backup_finish_date
= (SELECT max(backup_finish_date)
FROM msdb.dbo.backupset
WHERE database_name = x.database_name)) a
RIGHT OUTER JOIN sys.databases b ON a.database_name = b.name
WHERE b.name <> 'tempdb' -- Exclude tempdb
--AND (backup_finish_date < dateadd(d,-1,getdate()) )
AND backup_finish_date is null