1.获取当前时间一周前的日期 ' day from dual 类似的 --当前时间减去7分钟的时间 ' MINUTE from dual --当前时间减去7小时的时间 ' hour from dual --当前时间减去7天的时间 ' day from dual --当前时间减去7月的时间 ' month from dual --当前时间减去7年的时间 ' year from dual --时间间隔乘以一个数字 ' hour from dual 2.获取当前时间一个月前的日期 ) from dua
用sql查询当天,一周,一个月的数据 数据查询,不管在网站还是在系统,都很常见,下文是介绍最常见的以日期查询的语句 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 * fro
java 获取日期的几天前,几个月前和几年前. package bys.utils; import java.util.Date; /** * Created by toutou on 2015/3/23. */ public class DateHelper { public static final long ONE_MINUTE = 60000L; public static final long ONE_HOUR = 3600000L; public static final long
#coding:utf-8import MySQLdb #方法1直接在Navicat中添加计划任务#DELETE FROM message2 where SEND_TIME < UNIX_TIMESTAMP(DATE_SUB(CURDATE(),INTERVAL 90 day)) #方法2conn= MySQLdb.connect( host='xxx.xxx.xxx.xxx', port = 3306, user='root', passwd='xxxx', db ='xxx', ) cur
pg数据库按周,月统计数据 SELECT date_trunc('WEEK', insert_time) as insertDate, SUM(data_increment) as dataTotal,SUM(human_increment) as humanTotal from human_data_sum t where t.idtype=? GROUP BY insertDate ORDER BY insertDate DESC SELECT date_trunc('MONTH', ins