zoukankan      html  css  js  c++  java
  • SQL查询月、天、周、年

    /**//*计算今天是星期几*/
    select datename(weekday,getdate())

    /**//*查询本年的数据*/
    select * from  users where year(time)=year(getdate())  

    /**//*查询本月的数据,time是表users中代表时间的字段*/
    select * from users where month(time)=month(getdate()) and year(time)=year(getdate())

    /**//*查询今天的数据,time 是表中代表时间的字段*/
    select * from users where day(time)=day(getdate()) and month(time)=month(getdate()) and year(time)=year(getdate())

    /**//*计算那一天是星期一*/
    SELECT  DATEADD(wk,  DATEDIFF(wk,0,getdate()),  0) 

    /**//*计算那一天是周末*/
    select dateadd(wk,datediff(wk,0,getdate()),6)

    /**//*查询本周的数据*/
    select * from users where DATEPART(wk, time) = DATEPART(wk, GETDATE()) and DATEPART(yy, time) = DATEPART(yy, GETDATE())

    /**//*查询本日的记录*/
    select * from users where (DATEDIFF(dd, time, GETDATE()) = 0)

    /**//*查询本月的记录*/
    select * from users where (DATEDIFF(mm, time, GETDATE()) = 0)

    /**//*查询本年的记录*/
    select * from users where (DATEDIFF(yy, time, GETDATE()) = 0)在MySql中实现:
       1——  
       本年:  
       select   *   from   loanInfo   where   year(date)=year(getdate())  
        
       2——  
       本月:  
       select   *   from   loanInfo   where   year(date)=year(getDate())   And   month(date)=month(getdate())  
        
       3——  
      本日:  
      select   *   from   loanInfo   where   year(date)=year(getDate())   And   month(date)=month(getdate())   and   Day(date)=Day(getDate()) 

    SELECT   *    FROM   table    WHERE   (MONTH(字段)   =   MONTH(GETDATE())) 

  • 相关阅读:
    uva 1637 Double Patience
    Emacs ^ Vim
    uva 11181 Probability|Given
    uva 10491 Cows and Cars
    uva 1636 Headshot
    hdu 4336 Card Collector
    zoj 3640 Help Me Escape
    Codeforces 148 D Bag of mice
    hdu 4405 Aeroplane chess
    hdu 3853 LOOPS
  • 原文地址:https://www.cnblogs.com/wubin264/p/1433719.html
Copyright © 2011-2022 走看看