我使用了SQL Server维护向导（结合一本书）生成完整备份和差异备份。完整备份在周一早上运行，差异备份在周二至周六运行。完整备份正常运行并生成以下电子邮件报告...
Microsoft(R) Server Maintenance Utility (Unicode) Version 10.0.2531 Report was generated on "WIN-F9U4VJXGWF5".
Maintenance Plan: FIREDataFB
Duration: 00:31:31
Status: Succeeded.
Details:
Clean Up History (WIN-F9U4VJXGWF5)
Cleanup history on Local server connection History type: Backup,Job,Maintenance Plan
Age: Older than 1 Weeks
Task start: 2010-10-11T03:30:03.
Task end: 2010-10-11T03:30:03.
Success
Command:declare @dt datetime select @dt = cast(N''2010-10-04T03:30:02'' as datetime) exec msdb.dbo.sp_delete_backuphistory @dt GO EXEC msdb.dbo.sp_purge_jobhistory @oldest_date=''2010-10-04T03:30:02''
GO
EXECUTE msdb..sp_maintplan_delete_log null,null,''2010-10-04T03:30:02''
GO
Back Up Database (Full) (WIN-F9U4VJXGWF5) Backup Database on Local server connection
Databases: FIREData
Type: Full
Append existing
Task start: 2010-10-11T03:30:03.
Task end: 2010-10-11T04:01:33.
Success
Command:EXECUTE master.dbo.xp_create_subdir N''F:\SQL Backups\FIREData''
GO
BACKUP DATABASE [FIREData] TO DISK = N''F:\SQL Backups\FIREData\FIREData_backup_2010_10_11_033003_7444370.bak'' WITH NOFORMAT, NOINIT, NAME = N''FIREData_backup_2010_10_11_033003_7424370'', SKIP, REWIND, NOUNLOAD, STATS = 10 GO declare @backupSetId as int select @backupSetId = position from msdb..backupset where database_name=N''FIREData'' and backup_set_id=(select max(backup_set_id) from msdb..backupset where database_name=N''FIREData'' ) if @backupSetId is null begin raiserror(N''Verify failed. Backup information for database ''''FIREData'''' not found.'', 16, 1) end RESTORE VERIFYONLY FROM DISK = N''F:\SQL Backups\FIREData\FIREData_backup_2010_10_11_033003_7444370.bak'' WITH FILE = @backupSetId, NOUNLOAD, NOREWIND
GO
差异备份未能运行。它们失败并显示错误，指出差异作业无法找到完整备份结果。当差异作业失败时，将发送以下电子邮件报告...
Microsoft(R) Server Maintenance Utility (Unicode) Version 10.0.2531 Report was generated on "WIN-F9U4VJXGWF5".
Maintenance Plan: FIREDataDB
Duration: 00:00:01
Status: Warning: One or more tasks failed.
Details:
Back Up Database (Differential) (WIN-F9U4VJXGWF5) Backup Database on Local server connection
Databases: FIREData
Type: Differential
Append existing
Task start: 2010-10-12T03:30:03.
Task end: 2010-10-12T03:30:03.
Failed:(-1073548784) Executing the query "BACKUP DATABASE [FIREData] TO DISK = N'F:\\SQL Bac..." failed with the following error: "Cannot perform a differential backup for database "FIREData", 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.
Command:EXECUTE master.dbo.xp_create_subdir N''F:\SQL Backups\FIREData''
GO
BACKUP DATABASE [FIREData] TO DISK = N''F:\SQL Backups\FIREData\FIREData_backup_2010_10_12_033003_4624370.bak'' WITH DIFFERENTIAL , NOFORMAT, NOINIT, NAME = N''FIREData_backup_2010_10_12_033003_4604370'', SKIP, REWIND, NOUNLOAD, STATS = 10 GO declare @backupSetId as int select @backupSetId = position from msdb..backupset where database_name=N''FIREData'' and backup_set_id=(select max(backup_set_id) from msdb..backupset where database_name=N''FIREData'' ) if @backupSetId is null begin raiserror(N''Verify failed. Backup information for database ''''FIREData'''' not found.'', 16, 1) end RESTORE VERIFYONLY FROM DISK = N''F:\SQL Backups\FIREData\FIREData_backup_2010_10_12_033003_4624370.bak'' WITH FILE = @backupSetId, NOUNLOAD, NOREWIND
GO
我一定是忽略了什么明显的问题，因为我不会期望向导生成无法使用的脚本，但我找不到问题所在。我已经手持书籍和向导重复了创建过程两次，但都没有成功。任何帮助都将不胜感激。我正在使用 Windows 7 上的 SQL Server 2008 Management Studio 版本 10.0.2531.0。