Enable/Disable job:
-- enable EXEC msdb.dbo.sp_update_job @job_name='SampleJobName', @enabled = 1 -- disable EXEC msdb.dbo.sp_update_job @job_name='SampleJobName', @enabled = 0
Enable/Disable job:
-- enable EXEC msdb.dbo.sp_update_job @job_name='SampleJobName', @enabled = 1 -- disable EXEC msdb.dbo.sp_update_job @job_name='SampleJobName', @enabled = 0