INSERT SELECT if not exist

           INSERT 
           INTO cms_job_attachments_view (job_id, member_id)
           SELECT cms_job_group.job_id AS JID
                , GROUP_CONCAT( cms_members.id SEPARATOR ',')AS MEMEBRS_IN_GROUP
           FROM cms_members
             INNER
               JOIN cms_group_members ON cms_members.id = cms_group_members.member_id
             INNER 
               JOIN cms_group ON cms_group.id = cms_group_members.group_id
             INNER 
               JOIN cms_job_group ON cms_job_group.group_id = cms_group_members.group_id
          WHERE cms_job_group.job_id =1 AND cms_members.id <>12
          GROUP BY member_id";