Write Job function for the DB backup- MS SQL

This is my code for the 2 DB backup in the Job function. It's worked but DB size (0 files. What's the reason. 

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USE master
GO
DECLARE @path VARCHAR(100) -- path for backup files  
DECLARE @path2 VARCHAR(100) -- path for backup files  

set @pathIms2='D:\Backup_Schedule_Folder\ims2'+ cast(GETDATE()as varchar(20)) + '.bak'
set @pathMydb='D:\Backup_Schedule_Folder\mydb'+ cast(GETDATE()as varchar(20)) + '.bak'

BACKUP DATABASE [ims2]
TO  DISK = @pathIms2

BACKUP DATABASE [mydb]
   TO  DISK = @pathMydb

GO