mongodb数据库安装及常见操作
客户端和服务端的安装
# rpm -ivh mongo-10gen-2.4.6-mongodb_1.x86_64.rpm mongo-10gen-server-2.4.6-mongodb_1.x86_64.rpm
创建数据库存放数据目录
# mkdir -pv /mongodb/data
mkdir: created directory `/mongodb'
mkdir: created directory `/mongodb/data'
[root@node2 ~]# chown -R mongod.mongod /mongodb/data
修改配置文件
[root@node2 ~]# vim /etc/mongod.conf
[root@node2 ~]# service mongod start
可以通过访问web界面显示服务器状态：
http://192.168.8.39:28017/
数据库常见操作：
进入数据库
# mongo
> help
db.help() help on db methods
db.mycoll.help() help on collection methods
sh.help() sharding helpers
rs.help() replica set helpers
help admin administrative help
help connect connecting to a db help
help keys key shortcuts
help misc misc things to know
help mr mapreduce show dbs show database names
show collections show collections in current database
show users show users in current database
show profile show most recent system.profile entries with time >= 1ms
show logs show the accessible logger names
show log [name] prints out the last segment of log in memory, 'global' is default
use <db_name> set current database
db.foo.find() list objects in collection foo
db.foo.find( { a : 1 } ) list objects in foo where a == 1
it result of the last line evaluated; use to further iterate
DBQuery.shellBatchSize = x set default number of items to display on shell
exit quit the mongo shell
> use testdb
switched to db testdb
> show collections
> show dbs
admin (empty)
local 0.078125GB
test (empty)
testdb (empty)
> db.testcoll.insert({name: "tom"})
> show collections
system.indexes
testcoll
> db.testcoll.find()
{ "_id" : ObjectId("575cd1692756c2ee1a25da27"), "name" : "tom" }
> db.testcoll.insert({name: 'jack'})
> db.testcoll.find()
{ "_id" : ObjectId("575cd1692756c2ee1a25da27"), "name" : "tom" }
{ "_id" : ObjectId("575cd1962756c2ee1a25da28"), "name" : "jack" }
> db.testcoll.insert({name: 'lily',age: 18},{name: 'lucy', age: 19})
显示状态：
> db.testcoll.stats()
{
"ns" : "testdb.testcoll",
"count" : 3,
"size" : 132,
"avgObjSize" : 44,
"storageSize" : 4096,
"numExtents" : 1,
"nindexes" : 1,
"lastExtentSize" : 4096,
"paddingFactor" : 1,
"systemFlags" : 1,
"userFlags" : 0,
"totalIndexSize" : 8176,
"indexSizes" : {
"_id_" : 8176
},
"ok" : 1
}
删除文档
> show collections
system.indexes
testcoll
> show dbs
admin (empty)
local 0.078125GB
test (empty)
testdb 0.203125GB
> db.testcoll.drop()
true
> show collections
system.indexes
创建新表
> use itpart
switched to db itpart
> db.worker.insert({name: 'jack'})
> db.worker.insert({name: 'tom'})
> db.worker.insert({name: 'lily',age: 22})
> db.worker.insert({name: 'lucy',age: 23})
> db.worker.find()
{ "_id" : ObjectId("575cd3922756c2ee1a25da2a"), "name" : "jack" }
{ "_id" : ObjectId("575cd39a2756c2ee1a25da2b"), "name" : "tom" }
{ "_id" : ObjectId("575cd3ac2756c2ee1a25da2c"), "name" : "lily", "age" : 22 }
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "name" : "lucy", "age" : 23 }
> db.city.insert({area: 'shenzhen'})
> show collections
city
system.indexes
worker
> db.city.find()
{ "_id" : ObjectId("575cd3ef2756c2ee1a25da2e"), "area" : "shenzhen" }
> db.worker.find()
{ "_id" : ObjectId("575cd3922756c2ee1a25da2a"), "name" : "jack" }
{ "_id" : ObjectId("575cd39a2756c2ee1a25da2b"), "name" : "tom" }
{ "_id" : ObjectId("575cd3ac2756c2ee1a25da2c"), "name" : "lily", "age" : 22 }
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "name" : "lucy", "age" : 23 }
查找年龄大于22的元素
> db.worker.find({age:{$gt: 22}})
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "name" : "lucy", "age" : 23 }
只显示name
> db.worker.find({age: {$gt: 22}},{name:1 })
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "name" : "lucy" }
修改元素：
> db.worker.update({age: {$gt: 18}}, {$set: { status: 'A'}},{multi: true})
> db.worker.find()
{ "_id" : ObjectId("575cd3922756c2ee1a25da2a"), "name" : "jack" }
{ "_id" : ObjectId("575cd39a2756c2ee1a25da2b"), "name" : "tom" }
{ "_id" : ObjectId("575cd4f52756c2ee1a25da2f"), "age" : 22, "name" : "jack", "status" : "A" }
{ "_id" : ObjectId("575cd3ac2756c2ee1a25da2c"), "age" : 22, "name" : "lily", "status" : "A" }
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "age" : 23, "name" : "lucy", "status" : "A" }
删除元素：
> db.worker.remove({status: 'B'})
> db.worker.find()
{ "_id" : ObjectId("575cd3922756c2ee1a25da2a"), "name" : "jack" }
{ "_id" : ObjectId("575cd39a2756c2ee1a25da2b"), "name" : "tom" }
{ "_id" : ObjectId("575cd3ac2756c2ee1a25da2c"), "age" : 22, "name" : "lily", "status" : "A" }
{ "_id" : ObjectId("575cd3b72756c2ee1a25da2d"), "age" : 23, "name" : "lucy", "status" : "A" }
批量插入数据：
> for(i=1;i<=100;i++) db.testcoll.insert({name: "user" + i,age: i,gender: 'm',preferbooks: ['first book','second book']})
显示前三行
> db.testcoll.find().limit(3)
移除 年龄为8的元素
> db.testcoll.remove({age: 8})
查找年龄大于93的元素
> db.testcoll.find({age: {$gte: 93}})
找出年龄在60~70之间的元素
> db.testcoll.find({$and: [{age: {$gte: 60}}, {age: {$lte: 70}}]})
{ "_id" : ObjectId("575cd8302756c2ee1a25da6b"), "name" : "user60", "age" : 60, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da6c"), "name" : "user61", "age" : 61, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da6d"), "name" : "user62", "age" : 62, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da6e"), "name" : "user63", "age" : 63, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da6f"), "name" : "user64", "age" : 64, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da70"), "name" : "user65", "age" : 65, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da71"), "name" : "user66", "age" : 66, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da72"), "name" : "user67", "age" : 67, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da73"), "name" : "user68", "age" : 68, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da74"), "name" : "user69", "age" : 69, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
{ "_id" : ObjectId("575cd8302756c2ee1a25da75"), "name" : "user70", "age" : 70, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
显示address属性存在的元素
> db.testcoll.insert({name: 'jack',age: 28, address: 'shenzhen'})
> db.testcoll.find({address: {$exists: true}})
{ "_id" : ObjectId("575cdbf1c1e73f4b26e83033"), "name" : "jack", "age" : 28, "address" : "shenzhen" }
> db.testcoll.find({address: {$exists: false}})
修改元素，默认只修改第一行
> db.testcoll.update({age: {$gt: 80}} , {$set: {gender: 'f'}})
满足条件的全部修改
> db.testcoll.update({age: {$gt: 80}}, {$set: {gender: 'f'}},{multi: true})
删除列
> db.testcoll.update({name: 'user81'},{$unset: {preferbooks: ''}})
> db.testcoll.find({age: {$gt: 80}})
{ "_id" : ObjectId("575cd8302756c2ee1a25da80"), "age" : 81, "gender" : "f", "name" : "user81" }
索引的操作：
显示索引
> db.testcoll.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "itpart.testcoll",
"name" : "_id_"
}
]
> db.testcoll.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "itpart.testcoll",
"name" : "_id_"
},
{
"v" : 1,
"key" : {
"name" : 1
},
"ns" : "itpart.testcoll",
"name" : "name_1"
}
]
设置索引的方法
> db.testcoll.ensureIndex({name:'hashed'})
> db.testcoll.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "itpart.testcoll",
"name" : "_id_"
},
{
"v" : 1,
"key" : {
"name" : 1
},
"ns" : "itpart.testcoll",
"name" : "name_1"
},
{
"v" : 1,
"key" : {
"name" : "hashed"
},
"ns" : "itpart.testcoll",
"name" : "name_hashed"
}
]
删除
> db.testcoll.dropIndex('name_hashed')
{ "nIndexesWas" : 3, "ok" : 1 }
> db.testcoll.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "itpart.testcoll",
"name" : "_id_"
},
{
"v" : 1,
"key" : {
"name" : 1
},
"ns" : "itpart.testcoll",
"name" : "name_1"
}
]
显示查找过程
> db.testcoll.find({name:'user19'})
{ "_id" : ObjectId("575cd8302756c2ee1a25da42"), "name" : "user19", "age" : 19, "gender" : "m", "preferbooks" : [ "first book", "second book" ] }
> db.testcoll.find({name:'user19'}).explain()
{
"cursor" : "BtreeCursor name_1",
"isMultiKey" : false,
"n" : 1,
"nscannedObjects" : 1,
"nscanned" : 1,
"nscannedObjectsAllPlans" : 1,
"nscannedAllPlans" : 1,
"scanAndOrder" : false,
"indexOnly" : false,
"nYields" : 0,
"nChunkSkips" : 0,
"millis" : 0,
"indexBounds" : {
"name" : [
[
"user19",
"user19"
]
]
},
"server" : "node2.chinasoft.com:27017"
}
mongodb数据库安装及常见操作的更多相关文章
- python操作三大主流数据库(8)python操作mongodb数据库②python使用pymongo操作mongodb的增删改查
python操作mongodb数据库②python使用pymongo操作mongodb的增删改查 文档http://api.mongodb.com/python/current/api/index.h ...
- mongoVUE破解与配置、Mongodb数据库安装
一.mongoVUE 1.5.3破解: 1) 开始-运行-regedit-搜索:B1159E65-821C3-21C5-CE21-34A484D54444 2.) 然后把1,2,3项数值删除,然后重新 ...
- mongodb的安装与简单操作
MongoDB中文社区:http://www.mongoing.com 数据库的使用场景 SQL(关系型数据库):MySQL.SQLServer --->磁盘操作 1.高度事务性的场景 ...
- MongoDB数据库安装及配置环境终极教程(windows10系统)
本文是笔者花时间踩坑踩生气了写出来的!转载请注明出处@http://www.cnblogs.com/tim100/!请尊重我的劳动成果!谢谢! 今天,给大家说说在windows10系统下MongoDB ...
- mongodb数据库安装
mongodb的安装 1,下载安装包: http://www.runoob.com/mongodb/mongodb-window-install.html 2,安装至: D:\MongoDB,将 ...
- MongoDB数据库安装及配置环境(windows10系统)
windows10系统下MongoDB的安装及环境配置: MongoDB的安装 下载地址: https://www.mongodb.com/download-center (这是windows10环境 ...
- 第十二节：Web爬虫之MongoDB数据库安装与数据存储
MongoDB是一个基于分布式文件存储的数据库.由C++语言编写.旨在为WEB应用提供可扩展的高性能数据存储解决方案. MongoDB是一个介于关系数据库和非关系数据库之间的产品,是非关系数据库当中功 ...
- MongoDB 数据库安装
首先在官网上下载数据库:官网上提供了两种形式的数据库,一种是免安装版的,一种是安装版的.这点跟apache的tomcat类似,安装版的有可视化的界面对服务进行启动和关闭,可是还是比較喜欢免安装的.不解 ...
- MongoDB的安装及CURD操作
MongoDB的下载地址:http://www.mongodb.org/downloads MongoDB有32bit和64bit两个版本,32bit只能存放2GB数据.我们选择64bit版进行下载. ...
随机推荐
- [虚树模板] 洛谷P2495 消耗战
题意:给定树上k个点,求切断这些点到根路径的最小代价.∑k <= 5e5 解:虚树. 构建虚树大概是这样的:设加入点与栈顶的lca为y,比较y和栈中第二个元素的DFS序大小关系. 代码如下: i ...
- 内存分布图，errno
输出错误,errno是默认的全局变量 错误处理函数: 错误号:errno perror函数: void perror(const char *s); strerror函数: ...
- react组件在项目中的应用（基础知识）
上图我是定义了5个模块,全部都渲染在一个组件里面.可以先看看我的代码结构 我将Hello文件夹下的index.jsx文件作为父组件,最后渲染在根组件中. 那我们怎么输出这个Hello组件呢?要达到上图 ...
- mysql数据库user表host字段的%问题
搜索: mysql数据库user表host字段的%问题 连接:http://blog.csdn.net/xiaomengh/article/details/48706149 在mysql数据库中,使用 ...
- OpenCV 无法启动此程序，因为计算机中丢失opencv_core249.dll。请尝试重新安装改程序已解决此问题
换了64位的系统,配置好之后运行之前的程序,竟然给我抛出这个错误.应该是我的opencv没有安装对吧.系统报错 无法启动此程序,因为计算机中丢失opencv_core249.dll.请尝试重新安装改程 ...
- Kafka 0.10 Coordinator概述
由Kafka内置实现了失败检测和Rebalance(ZKRebalancerListener),但是它存在羊群效应和脑裂的问题,客户端代码实现低级API也不能解决这个问题.如果将失败探测和Rebala ...
- Linux 命令详解（五）cp 命令两个高效的用法
cp 命令两个高效的用法http://mp.weixin.qq.com/s/j7h-MayR0kCxfufWx0FtrA
- 一个单js文件也可以运行vue
新建一个hello.html文件,输入以下内容: <html> <head> <title></title> <script src=" ...
- MQTT协议－MQTT协议解析（MQTT数据包结构）
协议就是通信双方的一个约定,即,表示第1位传输的什么.第2位传输的什么…….在MQTT协议中,一个MQTT数据包由:固定头(Fixed header). 可变头(Variable header). 消 ...
- CRLF攻击的一篇科普：新浪某站CRLF Injection导致的安全问题（转）
转:https://www.leavesongs.com/PENETRATION/Sina-CRLF-Injection.html 新浪某站CRLF Injection导致的安全问题 PHITHON ...