Este comando verifica a ultima data de cada database da instância, bem como que foi o executor
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SELECT
T1.Name As ab_taxamedia
,Coalesce(Convert(varchar(12), MAX(T2.Backup_Finish_Date), 101),'Not Yet Taken') As LastBackUpTaken
,Coalesce(Convert(varchar(12), MAX(T2.User_Name), 101), 'NA') As UserName
FROM
sys.sysdatabases T1
LEFT OUTER JOIN
msdb.dbo.backupset T2
ON
T2.Database_Name = T1.Name
GROUP BY
T1.Name
ORDER BY
T1.Name
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SELECT
T1.Name As ab_taxamedia
,Coalesce(Convert(varchar(12), MAX(T2.Backup_Finish_Date), 101),'Not Yet Taken') As LastBackUpTaken
,Coalesce(Convert(varchar(12), MAX(T2.User_Name), 101), 'NA') As UserName
FROM
sys.sysdatabases T1
LEFT OUTER JOIN
msdb.dbo.backupset T2
ON
T2.Database_Name = T1.Name
GROUP BY
T1.Name
ORDER BY
T1.Name