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作者 lisyu 在 PTT [ Database ] 看板的留言(推文), 共2則
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4F→:你如果資料表長這樣,四筆是正常的,因為A表的一筆join了B表12/14 16:41
5F→:兩筆,要這樣寫major必須是唯一的才能出來兩筆12/14 16:52
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