How to associate all jobs to an operator ( base on their Job ID)

SQL : associate all jobs to an operator ( base on their Job ID)

use msdb

go

SELECT name ,

sql = '

EXEC msdb.dbo.sp_update_job @job_id=N''' +  convert(varchar(200), job_ID ) + ''',

              @notify_level_email=2,

              @notify_level_netsend=2,

              @notify_level_page=2,

              @notify_email_operator_name=N''SQLServerAlertMaint''

              go

              '

FROM dbo.sysjobs

order by  name

--WHERE program_name like 'SQLAgent - TSQL JobStep%'