獲得當前周的周一到周日

select subdate(curdate(),date_format(curdate(),‘%w‘)-1)//獲取當前日期在本周的周一
select subdate(curdate(),date_format(curdate(),‘%w‘)-7)//獲取當前日期在本周的周日

數據庫字段為int 那樣where條件這樣寫：

FROM_UNIXTIME(a.visit_time, ‘%Y-%m-%d‘) = subdate(
   curdate(),
   date_format(curdate(), ‘%w‘) - 7

-- 當天

where to_days(時間字段名) = to_days(now());
 

-- 本周

SELECT * FROM 表名 WHERE YEARWEEK(date_format(時間字段,‘%Y-%m-%d‘)) = YEARWEEK(now());

-- 最近7天

SELECT * FROM 表名 where date_sub(curdate(), INTERVAL 7 DAY) <= date (時間字段);

-- 本月

SELECT * FROM 表名 where date_format(時間字段, ‘%Y%m‘) = date_format(curdate() , ‘%Y%m‘);

-- 最近30天

SELECT * FROM 表名 WHERE date_sub(curdate(), INTERVAL 30 DAY) <= date(時間字段);

-- 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

-- 本季度

SELECT * FROM 表名  WHERE QUARTER(create_date)=QUARTER(now());

查詢上季度數據

=QUARTER(DATE_SUB(now(),interval 1 QUARTER));

查詢本年數據

 YEAR(create_date)=YEAR(NOW());

查詢上年數據

 year(create_date)=year(date_sub(now(),interval 1 year));
 

查詢上周的數據

 YEARWEEK(date_format(submittime,‘%Y-%m-%d‘)) = YEARWEEK(now())-1;

查詢上個月的數據

 date_format(submittime,‘%Y-%m‘)=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),‘%Y-%m‘)

 DATE_FORMAT(pudate,‘%Y%m‘) = DATE_FORMAT(CURDATE(),‘%Y%m‘) ; 
 WEEKOFYEAR(FROM_UNIXTIME(pudate,‘%y-%m-%d‘)) = WEEKOFYEAR(now()) 

MONTH(FROM_UNIXTIME(pudate,‘%y-%m-%d‘)) = MONTH(now()) 

 YEAR(FROM_UNIXTIME(pudate,‘%y-%m-%d‘)) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,‘%y-%m-%d‘)) = MONTH(now()) 

between  上月最後一天  and 下月第一天 

查詢距離當前現在6個月的數據

 submittime between date_sub(now(),interval 6 month) and now();

mysql日期時間處理