PostgreSQL 查询表中重复数据
发布时间:2020-12-13 17:10:49 所属栏目:百科 来源:网络整理
导读:1)查询表中重复数据 SELECT * FROM "tbScenics" WHERE "Scenic_Id" NOT IN ( SELECT max("Scenic_Id") FROM "tbScenics" GROUP BY "Scenic_Name","Scenic_Des","Scenic_Price","Scenic_Ticket" ); 2)删除表中重复数据 DELETE * FROM "tbScenics" WHERE "Scen
1)查询表中重复数据 SELECT * FROM "tbScenics"WHERE "Scenic_Id" NOT IN ( SELECT max("Scenic_Id") FROM "tbScenics" GROUP BY "Scenic_Name","Scenic_Des","Scenic_Price","Scenic_Ticket" ); 2)删除表中重复数据 DELETE * FROM "tbScenics" WHERE "Scenic_Id" NOT IN ( SELECT max("Scenic_Id") FROM "tbScenics" GROUP BY "Scenic_Name","Scenic_Ticket" ); (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |