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这里是DB的方案。如何从3个MySQL表中选择Name,Second Name和Name_Chairrr?如何从3个MySQL表中选择Name,Name和Name_Chairrr?
SELECT p.Name, p.Second_Name, c.Name_CHAIRRR
FROM Professors p
JOIN pchairs pc ON pc.ID_Professor = p.ID_professor
JOIN Chairs c ON c.ID_chair = pc.ID_Chair
你什么你试图做什么? 。尝试加入 – scaisEdge
我已经尝试使用左加入,但有错误 –
用您的查询代码更新您的问题,所以我们可以尝试改善它.. – scaisEdge