2. View the Exhibit to examine the description for the SALES table. Which views can have all DML operations performed on it? (Choose all that apply.) A. CREATE VIEW v3 AS SELECT * FROM SALES WHERE cust_id = 2034 WITH CHECK OPTION; B.  CREATE VIEW v1…

5. Which SQL statements would display the value 1890.55 as $1,890.55? (Choose three .) A. SELECT TO_CHAR(1890.55,'$0G000D00') FROM DUAL; B. SELECT TO_CHAR(1890.55,'$9,999V99')  FROM DUAL; C. SELECT TO_CHAR(1890.55,'$99,999D99') FROM DUAL; D. SELECT T…

12. You need to produce a report where each customer's credit limit has been incremented by $1000. In the output, the customer's last name should have the heading Name and the incremented credit limit should be labeled New Credit Limit. The column he…

7. Which two  statements are true regarding the USING and ON clauses in table joins? (Choose two.) A. Both USING and ON clauses can be used for equijoins and nonequijoins. B. A maximum of one pair of columns can be joined between two tables using the…

You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list. Input: (2 -> 4 -> 3) + (5 -> 6 ->…

#include<stdio.h> #include<stdlib.h> int singleNumber(int* nums, int numsSize) { int count[32]={0}; int i,j,number=0; for(i=0;i<numsSize;i++) { for(j=0;j<32;j++) count[j]+=((nums[i]&(1<<j))!=0); } for(i=0;i<32;i++) { if(coun…

32. Which CREATE TABLE statement is valid? A. CREATE TABLE ord_details          (ord_no NUMBER(2) PRIMARY KEY,   item_no NUMBER(3) PRIMARY KEY,   ord_date DATE NOT NULL);   B. CREATE TABLE ord_details          (ord_no NUMBER(2) UNIQUE, NOT NULL,   it…

参看了 https://github.com/awnuxkjy/recommend-system 对方用了 余弦 函数实现相似度计算,我则用的是 hanlp+hash 算法(Hash算法总结) 再看服务器的工作情况…

前言 以下代码来自:自己写的.工作项目框架上用到的.其他框架源码上的.网上看到的. 主要是作为工具函数,服务于框架业务,自身不依赖于其他框架类库,部分使用到es6/es7的语法使用时要注意转码 虽然尽量在函数中做了错误情况的处理,仍有可能出现报错的情况(不定期完善) 1. 获取url上的参数 /** *获取url上的参数 * @return {object} * @example * getRequest() getRequest().paramA */ function getRequest(…

在使用织梦DedeCMS的过程中,出于伪原创或者其他的原因,我们需要对文档的内容.标题.描述等等进行同义词或者其他的替换.这个就是一个简单的织梦SQL语句操作的问题,No牛网在织梦DedeCMS常用SQL语句整理一文中已经对织梦常用的SQL语句进行了一个总结,需要的朋友可以去看一下. 其他的织梦SQL语句就不多介绍了,这里主要说一下织梦的SQL批量替换语句.通用的织梦SQL批量替换语句的格式是下面这样子的: 1 update '表名' set body=replace(字段名,'需要替换的','…