SQL 備份 command

PRINT 'kmdn backup database '
declare @path nvarchar(max)
set @path = CONCAT('E:\data\kmdn_', FORMAT(GETDATE(),'yyyyMMdd'), '.bak')

BACKUP DATABASE [kmdn] TO DISK = @path WITH NOFORMAT, INIT, NAME = N'kmdn', SKIP, NOREWIND, NOUNLOAD, STATS = 10, CHECKSUM
GO