MySQL的組通過幫助簡單的例子SQL小白

Question

查詢

select incident.incidentID, 
GROUP_CONCAT(moccode2.Description) as MOC2Description 
from incident 
join incidentmoc on incident.IncidentID = incidentmoc.IncidentID 
inner join moccode2 on moccode2.id = incidentmoc.moccodeid 
where incident.IncidentID=962 
group by moccode2.Description 

結果：

incidentID, MOC2Description 
962, Therapist 
962, Obscentiy 

我正在拍攝的

incidentID, MOC2Description 
962, Therapist, Obscentiy 

Answer 1

你需要組上incident.incidentID代替。