HI This is the error log :

11/29/2008 15:53:11,Differential_BackUp.Subplan_1,Error,0,GIS-SV01,Differential_BackUp.Subplan_1,(Job outcome),,The job failed. The Job was invoked by User SLEMANI-GIS\administrator. The last step to run was step 1 (Subplan_1).,00:00:05,0,0,,,,0,,,

Thanks for all... i got the answers....

thanks a lot i made it...thank u..:D

yes i mean user data base..