mysql查詢當天所有數據sql語句

在mysql中查詢當天數據我們使用到如year,month,day函數是一種做法，還有一種利用date(regdate) = curdate()函數，當然我們也可以用其它方法，下面我來總結一下。

mysql查詢當天的所有信息：

 代碼如下 復制代碼

select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now())

這個有一些繁瑣，還有簡單的寫法：

 代碼如下 復制代碼

select * from table where date(regdate) = curdate();

另一種寫法沒測試過

查詢當天的記錄

 代碼如下 復制代碼

select * from hb_article_view where TO_DAYS(hb_AddTime) = TO_DAYS(NOW())

date()函數獲取日期部分, 扔掉時間部分，然後與當前日期比較即可

補充：本周、上周、本月、上個月份的數據

查詢當前這周的數據

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

查詢上周的數據

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

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')

查詢距離當前現在6個月的數據

 代碼如下 復制代碼 select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();

查詢上個月的數據

 代碼如下 復制代碼

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

mysql查詢多少秒內的數據

 

 代碼如下 復制代碼 SELECT count( * ) AS c, sum( if( logusertype =2, logusertype, 0 ) ) /2 AS a, sum( if( logusertype =3, logusertype, 0 ) ) /3 AS b
FROM testlog WHERE UNIX_TIMESTAMP(NOW())-UNIX_TIMESTAMP( logendtime )<=30

查詢30秒內記錄的總數，loguser等於2的記錄的總數和，和 loguser等於3的記錄的總數.

if( logusertype =2, logusertype, 0 ) 如果logusetype等於2 就在logusertype上累加，否則加0。

sum( if( logusertype =2, logusertype, 0 ) ) 把logusertype都累加起來。

sum( if( logusertype =2, logusertype, 0 ) ) /2 AS a, 除以2是統計個數。

UNIX_TIMESTAMP(NOW())計算當前時間的秒數，

UNIX_TIMESTAMP( logendtime )計算logendtime的秒數