Backup not workin with %date%

Question

Backup not workin with %date%

mjarosz

Newbie

Points: 7
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April 13, 2013 at 9:15 am

#292101

Hello,
I have question regarding backup SQL'05.
Please look ta my script :
sqlcmd -S srv_name -U sa -P pass -Q "BACKUP DATABASE Database_name TO DISK = 'D:\Backup\%date%_Database_name.bak' WITH NAME = 'Database_name_backup', FORMAT"
If i remove %Date% backup process will be completed successfully. But with %Date% I ahve folowing error:
Cannot open backup device 'D:\Backup\%date%_Database_name.bak' Date is repleaced by system time...
Please tell me what is wrong...
Thx for help
michal
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Lynn Pettis SSC Guru Points: 442467 More actions · Answer 1

mjarosz (4/13/2013)
Hello,
I have question regarding backup SQL'05.
Please look ta my script :
sqlcmd -S srv_name -U sa -P pass -Q "BACKUP DATABASE Database_name TO DISK = 'D:\Backup\%date%_Database_name.bak' WITH NAME = 'Database_name_backup', FORMAT"
If i remove %Date% backup process will be completed successfully. But with %Date% I ahve folowing error:
Cannot open backup device 'D:\Backup\%date%_Database_name.bak' Date is repleaced by system time...
Please tell me what is wrong...
Thx for help
michal

That is because SQL Server doesn't know what %date% is. It sees it as a string. If you are attempting to write your backups to a directory named with a date value (such as 20130413) you have put that in there by building the string needed for the backup command.

mister.magoo SSC-Forever Points: 47068 More actions · Answer 2

If you are running this as an operating system command (dos), then try %date:/=_% instead of %date%, this will output dates with the "/" replaced by "_" making for a valid filename.

MM

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