1、行转列的用法PIVOT CREATE table test
(id int,name nvarchar(20),quarter int,number int)
insert into test values(1,N苹果,1,1000)
insert into test values(1,N苹果,2,2000)
insert into test values(1,N苹果,3,4000)
insert into test values(1,N苹果,4,5000)
insert …
某一天,程序员使用Java语言实现累加求和的方法,将文件命名为Sample.java。 public class Sample {public static void main(String[] args) {System.out.println(sum(10));}private static int sum(int n) {int res 0;for (int i 1; i < n; i) {res…