April 23, 2019 at 11:04 am
Error Code-1073548784
Executing the query "BACKUP DATABASE [DBName] TO DISK = N'J:\\Differ..." failed with the following error: "Cannot perform a differential backup for database " DBName ", because a current database backup does not exist. Perform a full database backup by reissuing BACKUP DATABASE, omitting the WITH DIFFERENTIAL option.
BACKUP DATABASE is terminating abnormally.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
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I was Create a Job for Full, Differential and Log Backup of 10 Database
Full Backup Every Sunday 12 AM
Transactional Backup Every 6 hour Daily
Differential Backup Daily 10.pm
Full and Transactional run Success
but Differential Only Fail.
The issue occurred before one week
April 23, 2019 at 12:22 pm
It looks like something has broken the LSN for that database . That could be a switch from Full recovery to Simple and back, a restore, or another backup run outside your schedule.
You’ll need to check the logs to identify exactly what the ‘something’ is.
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