摘要: 以前在mysql5.7上执行如下sql语句没有问题 SELECT DISTINCT u.*,c.content userCategory FROM m_user u LEFT JOIN m_category c ON u.user_category=c.category_id LEFT JOIN m 阅读全文
posted @ 2019-01-29 17:11 kuroniko 阅读(570) 评论(0) 推荐(0)