摘要: 问题原因 待更新的目标表不能直接出现在from子句中; 错误写法 DELETE FROM Person WHERE id NOT IN ( SELECT min( id ) FROM person t1 GROUP BY email ) 正确写法(多封装一层) DELETE FROM Person 阅读全文
posted @ 2023-10-26 10:01 先娶国王后取经 阅读(0) 评论(0) 推荐(0) 编辑