MySQL統計函數記錄——時間段統計

按年彙總，統計： select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, '%Y'); 按月彙總，統計：  select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, '%Y-%m'); 按季度彙總，統計：  select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, '%Y'),FLOOR((date_format(col, '%m')+2)/3));  select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, '%Y'),FLOOR((date_format(col, '%m')+2)/3)); 按小時：  select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by date_format(col, '%Y-%m-%d %H '); 查詢 本年度的數據: SELECT * FROM mytable WHERE year(FROM_UNIXTIME(my_time)) = year(curdate()) 查詢數據附帶季度數: SELECT id, quarter(FROM_UNIXTIME(my_time)) FROM mytable; 查詢 本季度的數據: SELECT * FROM mytable WHERE quarter(FROM_UNIXTIME(my_time)) = quarter(curdate()); 本月統計: select * from mytable where month(my_time1) = month(curdate()) and year(my_time2) = year(curdate()) 本週統計: select * from mytable where month(my_time1) = month(curdate()) and week(my_time2) = week(curdate()) N天內記錄: WHERE TO_DAYS(NOW())-TO_DAYS(時間字段)<=N