In this section, we’ll check three ways to get the day of the week in PostgreSQL. First, we’ll use the TO_CHAR() function and then the EXTRACT() along with the DATE_PART() function. 3.1. Using the TO_CHAR() F
--本月记录 SELECT * FROM 表WHERE datediff(month,[dateadd],getdate())=0 --本周记录SELECT * FROM 表 WHERE datediff(week,[dateadd],getdate())=0--包括本年这些查询方式是一样的 sql server中的时间函数 1. 当前系统日期、时间 selectgetdate() 2. dateadd 在向指定日期加上一段时间的基础上,返回...
DATEADD(day, 6, your_date_column)函数用于将当前日期加上6天,即得到星期五的日期。 请注意,以上示例是基于SQL Server的语法,不同的数据库系统可能有稍微不同的语法,但基本思路是相似的。 关于云计算和IT互联网领域的名词词汇,以下是一些常见的相关概念和推荐的腾讯云产品: 云计算(Cloud Computin...
selectname,submittimefromenterprisewheredate_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1MONTH),'%Y-%m') select*from`user`whereDATE_FORMAT(pudate,' %Y%m ') = DATE_FORMAT(CURDATE(),' %Y%m ') ; select*fromuserwhereWEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d'))...
select * from ShopOrder where datediff(week,ordTime,getdate()-1)=0 //查询当天日期在一周年的数据 --查询当天: select * from info where DateDiff(dd,datetime,getdate())=0 --查询24小时内的: select * from info where DateDiff(hh,datetime,getDate())<=24 ...
select FROM_UNIXTIME(cast('1674048165' as bigint)); --如果是毫秒(13位)的话,需要除以1000转化为秒级,时间戳转时间时格式得为bigint select unix_timestamp(getdate()); 8、获取当前时间的周及星期 select concat(to_char(getdate(),'yyyy'),'年',weekofyear(getdate()),'周'); ...
SELECT DATE_ADD('2017-05-15 10:37:14.123456',INTERVAL 1 MONTH);-- 表示:2017-06-15 10:37:14.123456 SELECT DATE_ADD('2017-05-15 10:37:14.123456',INTERVAL 1 WEEK);-- 表示:2017-05-22 10:37:14.123456 SELECT DATE_ADD('2017-05-15 10:37:14.123456',INTERVAL 1 DAY);-- 表示:2017-05...
select * from ShopOrder where datediff(week,ordTime,getdate()-1)=0 //查询当天日期在一周年的数据 select * from ShopOrder where datediff(day,ordTime,getdate()-1)=0 //查询当天的所有数据 --查询当天: select * from info where DateDiff(dd,datetime,getdate())=0 ...
week until the current day. Getting the current day is easy because this is achieved from the GETDATE() function but getting the start of the week is a little bit tricky. The user-defined function below accepts a date input and returns the first day of the week for that input date. ...
In a previous tip,Simplify Date Period Calculations in SQL Server, I described how to easily calculate certain dates, like the first day of a given month, quarter, or year. Another common scenario is trying to find the last weekday of the month, or the nthMonday or Wednesday. ...