Mysql中查詢某一天，某個月，某一年資料

今天

select * from 表名 where to_days(時間欄位名) = to_days(now());

select * from 表名 where to_days( now( ) ) - to_days( 時間欄位名) <= 1

select * from 表名 where date_sub(curdate(), interval 7 day) <= date(時間欄位名)

select * from 表名 where date_sub(curdate(), interval 30 day) <= date(時間欄位名)

select * from 表名 where date_format( 時間欄位名, '%y%m' ) = date_format( curdate( ) , '%y%m' )

select * from 表名 where period_diff( date_format( now( ) , '%y%m' ) , date_format( 時間欄位名, '%y%m' ) ) =1

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

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

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

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

select name,submittime from enterprise where yearweek(date_format(submittime,'%y-%m-%d')) = yearweek(now());

select name,submittime from enterprise where yearweek(date_format(submittime,'%y-%m-%d')) = yearweek(now())-1;

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

select name,submittime from enterprise where date_format(submittime,'%y-%m')=date_format(now(),'%y-%m') 

//=後面可換為具體時間，查詢任意月份的資料

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

select * from exam where date_format(starttime,'%y-%m')='2017-10'

select * from exam where date_format(starttime,'%y-%m')=date_format('2017-10-05','%y-%m')

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