mysql 查詢當天 本週，本月，上乙個月的資料

關於時間週期內資料查詢，每次用每次查，今天看到一篇不錯的文章，總結很全面，立馬收藏

to_days(date)函式

用法：給定乙個日期，返回乙個天數(年為0以來的天數)

示例：select to_days(20170101);
返回：736695

用法：函式以"yyyy-mm-dd hh:mm:dd"或"yyyymmddhhmmss.uuuuuuu"格式的字串或數字返回配置的時區中的當前日期和時

間。函式的返回型別取決於使用它的上下文
示例：select
now(); 
返回：2018-01-23
11:59:25
示例: select
now() + 0;   
返回：20180123115953

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

7day) <= date(時間欄位名)

select * from 表名 where date_sub(curdate(), interval

30day) <= 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
1year));

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

1month),'%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')

select name,submittime from enterprise where submittime between date_sub(now(),interval

6month) and now();

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