mysql篩選重複數據

篩選重複數據 -------------單列----------------------- SELECT 檢查字段, COUNT(檢查字段) FROM table_name GROUP BY 檢查字段 HAVING COUNT(檢查字段) > 1 -------------多列------------------ SELECT 檢查字段1, COUNT(檢查字段1), 檢查字段2, CO

>>阅读原文<<