Mysql学习总结（57）——MySQL查询当天、本周、本月、上周、本周、上月、距离当前现在6个月数据

本文介绍了如何使用MySQL查询语句从`order`表中获取当天、本周、本月、上月、最近7天、最近30天、本季度、上季度、今年和去年的数据。查询涉及`TO_DAYS`、`DATE_SUB`、`DATE_FORMAT`、`PERIOD_DIFF`、`QUARTER`和`YEAR`等函数。

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 --------------查"当天"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
         ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 date(ew.reservetime) = curdate() 

 
 ORDER BY ew.reservetime DESC; 

 
 --------------查"上周"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
 ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 YEARWEEK(date_format(ew.reservetime, '%Y-%m-%d')) = YEARWEEK(now()) - 1 

 
 ORDER BY 

 
 ew.reservetime DESC; 

 
 --------------查"本周"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
 ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 YEARWEEK(date_format(ew.reservetime, '%Y-%m-%d')) = YEARWEEK(now()) 

 
 ORDER BY 

 
 ew.reservetime DESC; 

 
 --------------查"本月""当前月"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
 ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 date_format(ew.reservetime,'%Y-%m')=date_format(now(),'%Y-%m') 

 
 ORDER BY 

 
 ew.reservetime DESC; 

 
 --------------查"上个月"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
 ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 date_format(ew.reservetime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m') 

 
 ORDER BY 

 
 ew.reservetime DESC; 

 
 --------------查"距离当前现在6个月"的数据----------------- 

 
 SELECT 

 
 ew.orderid, 

 
 ew.carid, 

 
 ew.userid, 

 
 ew.`status`, 

 
 ew.reservetime, 

 
 ew.starttime, 

 
 ew.endtime, 

 
 ew.canceltime, 

 
 eu.nickname, 

 
 ec.plateid 

 
 FROM 

 
 evlib_workorder ew 

 
 LEFT JOIN evlib_user eu ON eu.userid = ew.userid 

 
 LEFT JOIN evlib_car ec ON ec.carid = ew.carid 

 
 WHERE 

 
 ew.reservetime between date_sub(now(),interval 6 month) and now() 

 
 ORDER BY 

 
 ew.reservetime DESC; 

建表语句如下：
CREATE TABLE `order` (
`id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
`order_name` VARCHAR(45) NOT NULL,
`order_time` DATETIME NOT NULL,
PRIMARY KEY (`id`)
)
下面根据 order_time 字段来查询各个时间段内的所有记录。
1，查询当天（今天）的数据
SELECT * FROM `order` WHERE TO_DAYS(order_time) = TO_DAYS(NOW())
2，查询昨天的数据
SELECT * FROM `order` WHERE TO_DAYS(NOW()) - TO_DAYS(order_time) = 1
3，查询最近7天的数据（包括今天一共7天）
SELECT * FROM `order` where DATE_SUB(CURDATE(), INTERVAL 7 DAY) < date(order_time)
4，查询最近30天的数据（包括今天一共30天）
SELECT * FROM `order` where DATE_SUB(CURDATE(), INTERVAL 30 DAY) < date(order_time)
5，查询当月（本月）的数据
SELECT * FROM `order` WHERE DATE_FORMAT(order_time, '%Y%m') = DATE_FORMAT(CURDATE(), '%Y%m')
6，查询上个月的数据
SELECT * FROM `order` WHERE PERIOD_DIFF(DATE_FORMAT(NOW(),'%Y%m'), DATE_FORMAT(order_time,'%Y%m')) =1
7，查询本季度的数据
SELECT * FROM `order` WHERE QUARTER(order_time)=QUARTER(NOW())
8，查询上季度的数据
SELECT * FROM `order` WHERE QUARTER(order_time)=QUARTER(DATE_SUB(NOW(),INTERVAL 1 QUARTER))
9，查询当年（今年）的数据
SELECT * FROM `order` WHERE YEAR(order_time)=YEAR(NOW())
10，查询去年的数据
SELECT * FROM `order` WHERE YEAR(order_time)=YEAR(DATE_SUB(NOW(),INTERVAL 1 YEAR))