merge

boot-service/src/main/java/com/xwbing/demo/Ademo.java

@@ -1,8 +1,5 @@
 package com.xwbing.demo;
 
-import java.util.ArrayList;
-import java.util.List;
-
 /**
  * 项目名称: boot-module-demo
  * 创建时间: 2018/1/23 14:45
@@ -11,33 +8,13 @@ import java.util.List;
  */
 public class Ademo {
     public static void main(String[] args) {
-        List<Integer> integers = new ArrayList<>();
-        for (int i = 0; i < 100; i++) {
-            integers.add(i);
-        }
-//        long l = System.currentTimeMillis();
-//        integers.forEach(integer -> {
-//            try {
-//                Thread.sleep(10);
-//            } catch (InterruptedException e) {
-//                e.printStackTrace();
-//            }
-//        });
-//        long l1 = System.currentTimeMillis();
-//        System.out.println(l1-l);
-
-        long l3 = System.currentTimeMillis();
-        integers.parallelStream().forEach(integer -> {
-            try {
-                Thread.sleep(10);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
+        qq:
+        for(int i=0;i<10;i++) {
+            for(int j=0;j<10;j++) {
+                if(j == 5) break qq;
             }
-        });
-        long l4 = System.currentTimeMillis();
-        System.out.println(l4-l3);
-
-
-
+        }
+        System.out.println("11"=="11");
+        System.out.println("11".equalsIgnoreCase(new String("11")));
     }
 }

boot-service/src/main/java/com/xwbing/demo/oracle/day02.sql

@@ -159,13 +159,13 @@ SELECT ENAME,SAL,COMM FROM EMP_XWBING;
 
 NVL(P1,P2) 若p1为NULL,函数返回p2. 若不为NULL,函数返回p1自身.所以该函数的作用是将NULL替代换为非NULL值
 查看员工总收入?
-SELECT ENAME,nvl(sum(SAL),0) FROM EMP_XWBING;
-SELECT ENAME,IFNULL(sum(SAL),0) FROM EMP_XWBING;//MYSQL---------
+SELECT ENAME,NVL(sum(SAL),0) FROM EMP_XWBING;
+SELECT ENAME,IFNULL(sum(SAL),0) FROM EMP_XWBING;//MYSQL----------------------------
 
 NVL2(P1,P2,P3) 若p1不为NULL值为p2,p1为NULL值为p3
 查看每个员工的奖金情况?
 SELECT ENAME,SAL,NVL2(BOUNS,'有奖金','无奖金') FROM EMP_XWBING;
-//MYSQL
+//MYSQL----------------------------------------
 ISNULL(字段) true返回1
 IF(p1,p2,p3):如果p1是true,返回值为p2;否则返回值则为p3
 IF(ISNULL(p1),p2,p3) 若p1为null值为p2,p1不为null值为p3

boot-service/src/main/java/com/xwbing/demo/oracle/day03.sql

@@ -51,7 +51,9 @@ DESC:降序
 SELECT ename ,sal FROM emp_xwbing ORDER BY sal;
 SELECT ename ,sal,deptno FROM emp_xwbing ORDER BY deptno,sal DESC;
 SELECT ename FROM emp_xwbing ORDER BY ename;
-SELECT * FROM emp_xwbing ORDER BY field(字段,'','');//mysql
+SELECT * FROM emp_xwbing ORDER BY decode(job,'doctor',1,'teacher',2,'student',3);
+SELECT * FROM emp_xwbing ORDER BY field(字段名,'','');//MYSQL---------------------------------
+