Mongo DB Study: first face with mongo DB

1.  study methods:

1.  Translate: I am the mongo DB organization website truck man. And I may use my knowledge to help myself learn more.

2.  Practice: only the practice can make me what I have done and what I can do.

2.  Ooh, Mongo Db is an open source (c++) no SQL database. This is what I very like it firstly. Next, with the use of it may make me more like it. Expecting!

3.  Today is the first use with it.

First we should get it:

www.mongodb.org you can get what you want.

I get the 32-bit r-2.4.4(the newer one, and with the information the even number release is more stable) after download the file, extract into the mongo DB directory like this.

Secondly, I add the mongo into the environment variables; make sure we can use it more quickly with the CMD of the win + R.

Like this:

Thirdly, let’s try it.

With the CMD, first we should point the database path like this:

If you see like this:

Congratulations, you get it. and you can with the IE confirm it.

http://localhost:217017 (mongo use the default port 217017), and you can with the 218017 with more details.

Surely, we can use mongo db now.

With a new CMD. And use command “mongo” start to use the database of mongo.

Insert:

We doesn’t must create a “table”, but we can use the insert method create a collection like this.

Find:

We may want to see what we have inserted. We can use find like the “select” with SQL to find it out.

Update:

We may want to update one item of the collection. Like this:

Remove:

You can remove the item. Like this:

Mongo DB Study: first face with mongo DB的更多相关文章

  1. MongoDB - The mongo Shell, Write Scripts for the mongo Shell

    You can write scripts for the mongo shell in JavaScript that manipulate data in MongoDB or perform a ...

  2. mongo实践-透过js shell操作mongo

    mongo实践-通过js shell操作mongo 保存命令: j={name:"wangjingjing",age:15} db.user.save(j); 查询命令: var ...

  3. rake db:migrate 与 bundle exec rake db:migrate 的区别(copy)

    [说明:资料来自http://blog.csdn.net/lihuan974683978/article/details/8715414] 之前一直没弄明白rake  db:migrate 与 bun ...

  4. Redis 配置连接池,redisTemplate 操作多个db数据库,切换多个db,解决JedisConnectionFactory的设置连接方法过时问题。(转)

    环境 springmvc jdk1.8 maven redis.properties配置文件 #redis setting redis.host=localhost redis.port=6379 r ...

  5. mongo源码学习(二)db.cpp之mongoDbMain方法分析

    mongo后台进程的入口:mongo/src/mongo/db/dbmain.cpp,wmain(for windows)和main函数,main函数也很简单,就是委托给db.cpp中的mongoDb ...

  6. MongoDB - The mongo Shell, Data Types in the mongo Shell

    MongoDB BSON provides support for additional data types than JSON. Drivers provide native support fo ...

  7. mongo db 使用方法

    1 下载 mogodb http://www.mongodb.org/display/DOCS/Downloads 2 打开服务 我安装在e盘下了 可以指定数据文件位置 到 E:\mongoDB\mo ...

  8. Mongo db 与mysql 语法比较

    mongodb与mysql命令对比 传统的关系数据库一般由数据库(database).表(table).记录(record)三个层次概念组成,MongoDB是由数据库(database).集合(col ...

  9. Java从入门到精通——数据库篇Mongo DB 安装启动及配置详解

    一.概述     Mongo DB 下载下来以后我们应该如何去安装启动和配置才能使用Mongo DB,本篇博客就给大家讲述一下Mongo DB的安装启动及配置详解. 二.安装 1.下载Mongo DB ...

随机推荐

  1. opencv png和jpg的叠加

    char *bgFile = "C:/C_Project/HandTraining/Debug/res/bg.jpg"; FILE *file = fopen(bgFile, &q ...

  2. eclipse中整合springMvc和velocity

    1.项目所需要的jar包(有些可能多余) 2.在src目录下创建一个bean  一个一个controller ,路径如下 person代码: package com.test.bean; import ...

  3. iis不支持下载apk的解决办法

    添加mime类型即可 扩展名:".apk", MIME类型:"application/vnd.android.package-archive"

  4. 表单验证神器——jquery.validate插件

    jquery.validate.js插件应用举例,ajax方式提交数据. html代码: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Tr ...

  5. exit()和_exit()

    进程就好比人一样有其生命,我们通过fork()函数来创建一个进程,那么我们又是如何来中止进程呢. 进程退出 1.在Linux中任何让一个进程退出 进程退出表示进程即将结束.在Linux中进程退出分为了 ...

  6. List转换DataTable

    /// <summary> /// 将泛类型集合List类转换成DataTable /// </summary> /// <param name="list&q ...

  7. oracle数据库备份

    --数据库备份--导出 exp userid=shoppingsys/shoppingsys@orcl file=/home/oracle/shoppingsys.dmp log=/home/orac ...

  8. C# 条件编译备忘

    第一步:配置管理器中新建解决方案配置 第二步:定义条件编译符号: 第三步:在代码中使用自定义的条件编译 #if CustomDebug Console.WriteLine("dsads&qu ...

  9. Oracle 数据操作

    查询及删除重复记录的SQL语句   1.查找表中多余的重复记录,重复记录是根据单个字段(Id)来判断   select * from 表 where Id in (select Id from 表 g ...

  10. select count(*)和select count(1)的区别

    一般情况下,Select Count (*)和Select Count(1)两着返回结果是一样的 假如表沒有主键(Primary key), 那么count(1)比count(*)快, 如果有主键的話 ...