您需要
DATE在columnName周围使用function
DateTime。
SELECt DATE(datetime) as DATE, SUM(`count`) totalCOuntFROM tableNameGROUP BY DATE(datetime)
- SQLFiddle演示

您需要
DATE在columnName周围使用function
DateTime。
SELECt DATE(datetime) as DATE, SUM(`count`) totalCOuntFROM tableNameGROUP BY DATE(datetime)