MySQL中, 如何查詢某一天, 某一月, 某一年的數據

今天

select * from 表名 where to_days(時間字段名) = to_days(now());

昨天(包括昨天和今天的數據)

SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 時間字段名) <= 1

昨天(只包括昨天)

SELECT * FROM 表名 WHERE DATEDIFF(字段,NOW())=-1;
-- 同理，查詢前天的就是-2

近7天

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(時間字段名)

近30天

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(時間字段名)

本月

SELECT * FROM 表名 WHERE DATE_FORMAT( 時間字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )

上一月

SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 時間字段名, '%Y%m' ) ) =1

查詢本季度數據

select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());

查詢上季度數據

select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));

查詢本年數據

select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());

查詢上年數據

select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year));

查詢當前這周的數據

SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now());

查詢上週的數據

SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1;

查詢上個月的數據

select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m')

select * from user where DATE_FORMAT(pudate,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m') ; 

select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now()) 

select * from user where MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) 

select * from user where YEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) 

select * from user where pudate between  上月最後一天  and 下月第一天 

查詢當前月份的數據

select name,submittime from enterprise   where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m')
select * from dividend where date_format(createtime,'%Y')='2019'

查詢距離當前現在6個月的數據

select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();

多表查詢

sql = "select * from dividend de left join admin ad ON ad.ad_id=de.uid where ad.type=? and de.createtime=? and ad.level=3";

插入

            PreparedStatement psql0;
 		    psql0 = con.prepareStatement("insert into detail(senduid,acceptuid,money,type,details,status,createtime) values(?,?,?,?,?,?,?)");
 		    psql0.setInt(1, 100000);
 		    psql0.setInt(2,uid);
 		    psql0.setDouble(3,allsingledividend*(1-rate));
 		    psql0.setString(4,"分紅"); 
 		    psql0.setString(5,"省內單品分紅："+uid+"分紅"+allsingledividend+",扣稅"+allsingledividend*rate+",實際獲得"+allsingledividend*(1-rate));
 		    psql0.setString(6,"分紅成功");
 		    psql0.setString(7,DateUtil.getCurrentDateTimeStr());
 		    psql0.executeUpdate();
 		    psql0.close();

修改

            PreparedStatement psql1; 
 			psql1 = con.prepareStatement("update dividend set allsingledividend=? where createtime=?");
 			psql1.setString(1,"已發");
 			psql1.setString(2, currentTime);
 			psql1.executeUpdate();
 			psql1.close();

參考：https://www.cnblogs.com/azhqiang/p/6702950.html