b.id as sub_id, b.business_id as sub_business_id, b.module_name as sub_module_name, b.accessory_type as sub_accessory_type, b.accessory_url as sub_accessory_url, b.accessory_name as sub_accessory_name
from school_video_consult_external a
left join school_accessory b on b.business_id = a.id