摘要：
import java.util.*;public class Test01 { public static void main(String[] args) { int num1, num2, product, count; int vampCount = 0; int[] startDigit = new int[4]; int[] productDigit = new int[4]; for(num1 = 10; num1 <= 99; num1++){ /... 阅读全文
摘要：
--内连接即普通等值连接SELECT e.ENAME, e.JOB, e.SAL, d.DNAME FROM EMP e INNER JOIN DEPT d ON e.DEPTNO = d.DEPTNO WHERE e.SAL > 2000;select e.ename ,e.job, e.sal ,d.dname from emp e,dept d where e.deptno = d.deptno and e.sal > 2000;--外连接验证之前，先往dept表中插入一些信息--表操作基于Oracle中scott用户下emp，dept表。由于deptno是emp的外键，-- 阅读全文