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
求交错序列前N项和 #include <stdio.h> int main() { int numerator, denominator, flag, i, n; double item, sum; while (scanf("%d", &n) != EOF) { flag = 1; numerator = 1; denominator = 1; sum = 0; for (i = 1; i <= n; i++) { item = flag*1.0*numer
转载源:http://www.jb51.net/article/42613.htm SQL按照日.周.月.季度.年统计数据的方法 方式一: --按日 select sum(consume),day([date]) from consume_record where year([date]) = '2006' group by day([date]) --按周quarter select sum(consume),datename(week,[date]) from consume_record
题目9: 2008年5月31日, 往前倒30天是哪天? import java.util.*; public class Test { public static void main(String[] args) { Date date; Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, 2008); cal.set(Calendar.MONTH,
写sql语句分别按日,星期,月,季度,年统计销售额 --按日 select sum(consume),day([date]) from consume_record where year([date]) = '2006' group by day([date]) --按周quarter select sum(consume),datename(week,[date]) from consume_record where year([date]) = '2006' group by datenam
写sql语句分别按日,星期,月,季度,年统计销售额 --按日 select sum(consume),day([date]) from consume_record where year([date]) = '2006' group by day([date]) --按周quarter select sum(consume),datename(week,[date]) from consume_record where year([date]) = '2006' group by datenam