[請益] 兩個資料表刪除疑問
目前有兩個資料表(客戶和訂單)，分別是customers、orders
假設我今天刪除customers中的某個客戶A，那我需要也把orders中屬於客戶A的訂單
資料完全刪除..
關於這個問題煩請高手指點一下~感恩!
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