mysql按照天、月份、年份统计查询

按月份查询

SELECT *  FROM tbl_order GROUP BY DATE_FORMAT(CreateTime,'%Y-%m');

SELECT sum(money), DATE_FORMAT(CreateTime,'%Y-%m')  FROM tbl_order GROUP BY DATE_FORMAT(CreateTime,'%Y-%m'); 

按天查询

SELECT *  FROM tbl_bill GROUP BY DATE_FORMAT(CreateTime,'%Y-%m-%d');
SELECT sum(Income), DATE_FORMAT(CreateTime,'%Y-%m-%d')  FROM tbl_bill GROUP BY DATE_FORMAT(CreateTime,'%Y-%m-%d');