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

--------------查"当天"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname, ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREdate(ew.reservetime) = curdate()ORDER BY ew.reservetime DESC;

--------------查"上周"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname,ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREYEARWEEK(date_format(ew.reservetime, '%Y-%m-%d')) = YEARWEEK(now()) - 1ORDER BYew.reservetime DESC;

--------------查"本周"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname,ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREYEARWEEK(date_format(ew.reservetime, '%Y-%m-%d')) = YEARWEEK(now())ORDER BYew.reservetime DESC;

--------------查"本月""当前月"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname,ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREdate_format(ew.reservetime,'%Y-%m')=date_format(now(),'%Y-%m')ORDER BYew.reservetime DESC;

--------------查"上个月"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname,ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREdate_format(ew.reservetime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m')ORDER BYew.reservetime DESC;

--------------查"距离当前现在6个月"的数据-----------------SELECTew.orderid,ew.carid,ew.userid,ew.`status`,ew.reservetime,ew.starttime,ew.endtime,ew.canceltime,eu.nickname,ec.plateidFROMevlib_workorder ewLEFT JOIN evlib_user eu ON eu.userid = ew.useridLEFT JOIN evlib_car ec ON ec.carid = ew.caridWHEREew.reservetime between date_sub(now(),interval 6 month) and now()ORDER BYew.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))