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 程式師世界 >> 數據庫知識 >> MYSQL數據庫 >> MySQL綜合教程 >> MySQL的YEARWEEK函數以及查詢本周數據

MySQL的YEARWEEK函數以及查詢本周數據

編輯:MySQL綜合教程

MySQL的YEARWEEK函數以及查詢本周數據
MySQL 的 YEARWEEK 是獲取年份和周數的一個函數,函數形式為 YEARWEEK(date[,mode]) 

例如 2010-3-14 ,禮拜天 
  www.2cto.com  
SELECT YEARWEEK('2010-3-14') 返回 11 
SELECT YEARWEEK('2010-3-14',1) 返回 10 

其中第二個參數是 mode ,具體指的意思如下:  www.2cto.com     Mode First day of week Range Week 1 is the first week … 0 Sunday 0-53 with a Sunday in this year 1 Monday 0-53 with more than 3 days this year 2 Sunday 1-53 with a Sunday in this year 3 Monday 1-53 with more than 3 days this year 4 Sunday 0-53 with more than 3 days this year 5 Monday 0-53 with a Monday in this year 6 Sunday 1-53 with more than 3 days this year 7 Monday 1-53 with a Monday in this 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());   查詢上周的數據 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 select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();   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;    

 

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