mysql查询日期总结

注&＃xff1a;部分代码参考网上的&＃xff0c;这里总结是为日后使用方便&＃xff0c;如有问题&＃xff0c;请联系我删除

在很多地方都使用到了mysql的日期查询&＃xff0c;如果不做处理&＃xff0c;查询出来的是毫秒数&＃xff0c;虽然就java能够处理&＃xff0c;但是总归是要浪费时间&＃xff0c;所以特地想总结一些关于日期查询相关的方法&＃xff0c;供以后查询方便。

第一种&＃xff1a;在sql中使用DATE_FORMAT进行格式化&＃xff0c;得到的结果直接就是你设置的格式

SELECT
DATE_FORMAT(t.create_time,&＃39;%Y-%c-%d %H:%i:%s&＃39;) &＃39;date&＃39;
FROMe_mail_accept t

得到的是&＃xff1a;2018-12-08 16:36:47

第二种&＃xff1a;如果是使用的ssm项目&＃xff0c;则可以通过在对应的pojo上面加上&＃64;JsonFormat注解&＃xff0c;即可得到想要的结果

/** 创建时间 */
&＃64;JsonFormat(locale&＃61;"zh", timezone&＃61;"GMT&＃43;8", pattern&＃61;"yyyy-MM-dd HH:mm:ss")
&＃64;TableField(value&＃61;"create_time")
private Date createTime;

此方法需要在maven加上如下代码

com.fasterxml.jackson.corejackson-databind2.9.2


第三种&＃xff1a;查询当前日期常用的sql

SELECT DATE_SUB(CURDATE(),INTERVAL 0 DAY) ;

结果&＃xff1a;2018-12-19

SELECT NOW();

结果&＃xff1a;2018-12-19 22:11:53

SELECT CURDATE();

结果&＃xff1a;2018-12-19

查询昨天&＃xff1a;2018-12-18

SELECT DATE_SUB(CURDATE(),INTERVAL 1 DAY) ;

查询明天&＃xff1a;2018-12-19

SELECT DATE_SUB(CURDATE(),INTERVAL -1 DAY) ;

查询前一个小时&＃xff1a;2018-12-19 21:19:10

SELECT DATE_SUB(NOW(),INTERVAL 1 HOUR) ;

查询后一个小时&＃xff1a;2018-12-19 21:19:10

SELECT DATE_SUB(NOW(),INTERVAL -1 HOUR) ;

查询前一分钟&＃xff1a;2018-12-19 22:19:08

SELECT DATE_SUB(NOW(),INTERVAL 1 MINUTE) ;

查询前一年&＃xff1a;2017-12-19 22:19:08

SELECT DATE_SUB(NOW(),INTERVAL 1 YEAR) ;
第四种&＃xff1a;查询时间段的时候&＃xff0c;要确定是比较年月日还是比较到时分秒

select * from test where date_format(create_time,&＃39;%Y-%m-%d&＃39;) between &＃39;2018-07-30&＃39; and &＃39;2018-07-31&＃39;;


第五中&＃xff1a;常用的查询今天、昨天、最近几天、一个月、一个季度等数据查询

此段参考了&＃xff1a;https://www.cnblogs.com/benefitworld/p/5832897.html

今天
select * from 表名 where to_days(时间字段名) &＃61; to_days(now());
昨天
SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <&＃61; 1
近7天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <&＃61; date(时间字段名)
近30天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <&＃61; date(时间字段名)
本月
SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, &＃39;%Y%m&＃39; ) &＃61; DATE_FORMAT( CURDATE( ) , &＃39;%Y%m&＃39; )
上一月
SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , &＃39;%Y%m&＃39; ) , date_format( 时间字段名, &＃39;%Y%m&＃39; ) ) &＃61;1
查询本季度数据
select * from &＃96;ht_invoice_information&＃96; where QUARTER(create_date)&＃61;QUARTER(now());
查询上季度数据
select * from &＃96;ht_invoice_information&＃96; where QUARTER(create_date)&＃61;QUARTER(DATE_SUB(now(),interval 1 QUARTER));
查询本年数据
select * from &＃96;ht_invoice_information&＃96; where YEAR(create_date)&＃61;YEAR(NOW());
查询上年数据
select * from &＃96;ht_invoice_information&＃96; where year(create_date)&＃61;year(date_sub(now(),interval 1 year));
查询当前这周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,&＃39;%Y-%m-%d&＃39;)) &＃61; YEARWEEK(now());
查询上周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,&＃39;%Y-%m-%d&＃39;)) &＃61; YEARWEEK(now())-1;
查询上个月的数据

select name,submittime from enterprise where date_format(submittime,&＃39;%Y-%m&＃39;)&＃61;date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),&＃39;%Y-%m&＃39;)
select * from user where DATE_FORMAT(pudate,&＃39;%Y%m&＃39;) &＃61; DATE_FORMAT(CURDATE(),&＃39;%Y%m&＃39;) ;
select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,&＃39;%y-%m-%d&＃39;)) &＃61; WEEKOFYEAR(now())
select * from user where MONTH(FROM_UNIXTIME(pudate,&＃39;%y-%m-%d&＃39;)) &＃61; MONTH(now())
select * from user where YEAR(FROM_UNIXTIME(pudate,&＃39;%y-%m-%d&＃39;)) &＃61; YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,&＃39;%y-%m-%d&＃39;)) &＃61; MONTH(now())
select * from user where pudate between 上月最后一天 and 下月第一天

查询当前月份的数据
select name,submittime from enterprise where date_format(submittime,&＃39;%Y-%m&＃39;)&＃61;date_format(now(),&＃39;%Y-%m&＃39;)
查询距离当前现在6个月的数据
select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();