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Mongodb详解与安装

2017-11-23 811
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本文涉及的产品
云数据库 MongoDB，独享型 2核8GB
推荐场景：
构建全方位客户视图
简介：

NOSQL的数据存储模型
键值模型：(key-avalue存储)
优点：查找速度快
缺点：数据无结构，通常只被当作字符串或二进制数据
应用场景：内容缓存
实例：Redis,Dynamo

列式模型
数据模型：数据按列存储，将同一列数据存在一起。
优点：查找迅速，可扩展性强,易于实现分布式
缺点：功能相对SQL很有限
应用场景：分布式文件系统或分布式存储
实例：Bigtable(google),Cassandra(facebook),HBase(hadoop),Hypertable

文档模型
数据模型：与键值模型类似，value指向结构化数据
优点：数据格式要求不严格，无需事先定义结构
缺点：查询性能不高，缺乏统一查询语法
应用场景：web应用
实例：MongoDB,CouchDB

图式模型
数据模型：图结构模型
优点：利用图结构相关算法提高性能，并满足特珠场景应用需求
缺点：难以实现分布式，功能有定向性
应用场景：社交网络，推荐系统，关系图谱
实例：Neo4j
ww.nosql.database.org

 

mongodb
C/S
 mongod
 mongo-->mongod
 mongo>use testdb(不需要分号;结尾)
 mongo>db.mycollection.insert()
 
 面向collection的数据库
  数据库：但数据库无须创建
  表：行<-->集合：文档
  集合无须事先定义；

 

 

安装与配置

1、 创建 /etc/yum.repos.d/mongodb-org-3.0.repo文件

 

[root@hadoop2 ~]# vim /etc/yum.repos.d/mongodb-org-3.0.repo

[mongodb-org-3.0]
name=MongoDB Repostitory
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/
gpgcheck=0
enabled=1

 #[mongodb-org-2.6]
#name=MongoDB 2.6 Repository
#baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
#gpgcheck=0
#enabled=1 

 

2、配置

[root@hadoop2 ~]# yum install -y mongodb-org

[root@hadoop2 ~]# mkdir -p /mongod/data

[root@hadoop2 ~]# chown -R mongod.mongod /mongo

[root@hadoop2 ~]# vim /etc/mongod.conf

# mongod.conf

#where to log
logpath=/var/log/mongodb/mongod.log

logappend=true

# fork and run in background
fork=true

#port=27017

dbpath=/mongo/data/                         ##改一下数据存放路径

# location of pidfile
pidfilepath=/var/run/mongodb/mongod.pid

 

[root@hadoop2 mongo]# service mongod start
Starting mongod:                                           [确定]

 

3、基础操作

[root@hadoop2 mongo]# mongo
MongoDB shell version: 3.0.4
connecting to: test
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, see
 http://docs.mongodb.org/
Questions? Try the support group
 http://groups.google.com/group/mongodb-user
Server has startup warnings: 
2015-07-21T14:58:55.518+0800 I CONTROL  [initandlisten] 
2015-07-21T14:58:55.518+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2015-07-21T14:58:55.518+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-07-21T14:58:55.518+0800 I CONTROL  [initandlisten] 
2015-07-21T14:58:55.519+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2015-07-21T14:58:55.519+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-07-21T14:58:55.519+0800 I CONTROL  [initandlisten] 
2015-07-21T14:58:55.519+0800 I CONTROL  [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 1024 processes, 64000 files. Number of processes should be at least 32000 : 0.5 times number of files.
2015-07-21T14:58:55.519+0800 I CONTROL  [initandlisten] 
> 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
> show co
CountDownLatch         connect(               copyDbpath(
compare(               connectionURLTheSame(  copyFile(
compareOn(             constructor
> show dbs
local  0.078GB
> for(i=1;i<=100;i++) db.testcoll.insert({Name: "User"+i,Age: i,Gender: "M",PreferBook: ["first book","Second book"]})
WriteResult({ "nInserted" : 1 })
> db.testcoll.find()
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b6"), "Name" : "User3", "Age" : 3, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b7"), "Name" : "User4", "Age" : 4, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b8"), "Name" : "User5", "Age" : 5, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b9"), "Name" : "User6", "Age" : 6, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ba"), "Name" : "User7", "Age" : 7, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bb"), "Name" : "User8", "Age" : 8, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bc"), "Name" : "User9", "Age" : 9, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bd"), "Name" : "User10", "Age" : 10, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3be"), "Name" : "User11", "Age" : 11, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bf"), "Name" : "User12", "Age" : 12, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c0"), "Name" : "User13", "Age" : 13, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c1"), "Name" : "User14", "Age" : 14, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c2"), "Name" : "User15", "Age" : 15, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c3"), "Name" : "User16", "Age" : 16, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c4"), "Name" : "User17", "Age" : 17, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c5"), "Name" : "User18", "Age" : 18, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c6"), "Name" : "User19", "Age" : 19, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c7"), "Name" : "User20", "Age" : 20, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> it
{ "_id" : ObjectId("55adefd49883f07d0866c3c8"), "Name" : "User21", "Age" : 21, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c9"), "Name" : "User22", "Age" : 22, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ca"), "Name" : "User23", "Age" : 23, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3cb"), "Name" : "User24", "Age" : 24, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3cc"), "Name" : "User25", "Age" : 25, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3cd"), "Name" : "User26", "Age" : 26, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ce"), "Name" : "User27", "Age" : 27, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3cf"), "Name" : "User28", "Age" : 28, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d0"), "Name" : "User29", "Age" : 29, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d1"), "Name" : "User30", "Age" : 30, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d2"), "Name" : "User31", "Age" : 31, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d3"), "Name" : "User32", "Age" : 32, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d4"), "Name" : "User33", "Age" : 33, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d5"), "Name" : "User34", "Age" : 34, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d6"), "Name" : "User35", "Age" : 35, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d7"), "Name" : "User36", "Age" : 36, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d8"), "Name" : "User37", "Age" : 37, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3d9"), "Name" : "User38", "Age" : 38, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3da"), "Name" : "User39", "Age" : 39, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3db"), "Name" : "User40", "Age" : 40, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> it
{ "_id" : ObjectId("55adefd49883f07d0866c3dc"), "Name" : "User41", "Age" : 41, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3dd"), "Name" : "User42", "Age" : 42, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3de"), "Name" : "User43", "Age" : 43, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3df"), "Name" : "User44", "Age" : 44, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e0"), "Name" : "User45", "Age" : 45, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e1"), "Name" : "User46", "Age" : 46, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e2"), "Name" : "User47", "Age" : 47, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e3"), "Name" : "User48", "Age" : 48, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e4"), "Name" : "User49", "Age" : 49, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e5"), "Name" : "User50", "Age" : 50, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e6"), "Name" : "User51", "Age" : 51, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e7"), "Name" : "User52", "Age" : 52, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e8"), "Name" : "User53", "Age" : 53, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3e9"), "Name" : "User54", "Age" : 54, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ea"), "Name" : "User55", "Age" : 55, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3eb"), "Name" : "User56", "Age" : 56, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ec"), "Name" : "User57", "Age" : 57, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ed"), "Name" : "User58", "Age" : 58, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ee"), "Name" : "User59", "Age" : 59, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ef"), "Name" : "User60", "Age" : 60, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> db.testcoll.find().limit(2)
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> db.testcoll.remove({Age:10})
WriteResult({ "nRemoved" : 1 })
> db.testcoll.find().limit(15)
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b6"), "Name" : "User3", "Age" : 3, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b7"), "Name" : "User4", "Age" : 4, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b8"), "Name" : "User5", "Age" : 5, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b9"), "Name" : "User6", "Age" : 6, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ba"), "Name" : "User7", "Age" : 7, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bb"), "Name" : "User8", "Age" : 8, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bc"), "Name" : "User9", "Age" : 9, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3be"), "Name" : "User11", "Age" : 11, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bf"), "Name" : "User12", "Age" : 12, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c0"), "Name" : "User13", "Age" : 13, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c1"), "Name" : "User14", "Age" : 14, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c2"), "Name" : "User15", "Age" : 15, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c3"), "Name" : "User16", "Age" : 16, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> db.testcoll.re
db.testcoll.reIndex(           db.testcoll.renameCollection(
db.testcoll.remove(
> db.testcoll.remove({Name:"User14"})
WriteResult({ "nRemoved" : 1 })
> db.testcoll.find().limit(15)
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b6"), "Name" : "User3", "Age" : 3, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b7"), "Name" : "User4", "Age" : 4, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b8"), "Name" : "User5", "Age" : 5, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b9"), "Name" : "User6", "Age" : 6, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ba"), "Name" : "User7", "Age" : 7, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bb"), "Name" : "User8", "Age" : 8, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bc"), "Name" : "User9", "Age" : 9, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3be"), "Name" : "User11", "Age" : 11, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bf"), "Name" : "User12", "Age" : 12, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c0"), "Name" : "User13", "Age" : 13, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c2"), "Name" : "User15", "Age" : 15, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c3"), "Name" : "User16", "Age" : 16, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c4"), "Name" : "User17", "Age" : 17, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> db.testcoll.update({Name:"User12"},{$set:{Age: 32}})
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 })
> db.testcoll.find().limit(15)
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b6"), "Name" : "User3", "Age" : 3, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b7"), "Name" : "User4", "Age" : 4, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b8"), "Name" : "User5", "Age" : 5, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b9"), "Name" : "User6", "Age" : 6, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ba"), "Name" : "User7", "Age" : 7, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bb"), "Name" : "User8", "Age" : 8, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bc"), "Name" : "User9", "Age" : 9, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3be"), "Name" : "User11", "Age" : 11, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bf"), "Name" : "User12", "Age" : 32, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c0"), "Name" : "User13", "Age" : 13, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c2"), "Name" : "User15", "Age" : 15, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c3"), "Name" : "User16", "Age" : 16, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c4"), "Name" : "User17", "Age" : 17, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> db.testcoll.co
db.testcoll.constructor             db.testcoll.copyTo(
db.testcoll.convertToCapped(        db.testcoll.count(
db.testcoll.convertToSingleObject(
> db.testcoll.count()
98
> db.testcoll.find({Age: {$gte:93}})
{ "_id" : ObjectId("55adefd49883f07d0866c410"), "Name" : "User93", "Age" : 93, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c411"), "Name" : "User94", "Age" : 94, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c412"), "Name" : "User95", "Age" : 95, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c413"), "Name" : "User96", "Age" : 96, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c414"), "Name" : "User97", "Age" : 97, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c415"), "Name" : "User98", "Age" : 98, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c416"), "Name" : "User99", "Age" : 99, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c417"), "Name" : "User100", "Age" : 100, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> 
> db.testcoll.find({Age: {$gte:93}},{Name:1,Age:1})
{ "_id" : ObjectId("55adefd49883f07d0866c410"), "Name" : "User93", "Age" : 93 }
{ "_id" : ObjectId("55adefd49883f07d0866c411"), "Name" : "User94", "Age" : 94 }
{ "_id" : ObjectId("55adefd49883f07d0866c412"), "Name" : "User95", "Age" : 95 }
{ "_id" : ObjectId("55adefd49883f07d0866c413"), "Name" : "User96", "Age" : 96 }
{ "_id" : ObjectId("55adefd49883f07d0866c414"), "Name" : "User97", "Age" : 97 }
{ "_id" : ObjectId("55adefd49883f07d0866c415"), "Name" : "User98", "Age" : 98 }
{ "_id" : ObjectId("55adefd49883f07d0866c416"), "Name" : "User99", "Age" : 99 }
{ "_id" : ObjectId("55adefd49883f07d0866c417"), "Name" : "User100", "Age" : 100 }
> db.testcoll.find({$and: [{Age:{$gt: 61}},{Age: {$lt:80}}]})
{ "_id" : ObjectId("55adefd49883f07d0866c3f1"), "Name" : "User62", "Age" : 62, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f2"), "Name" : "User63", "Age" : 63, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f3"), "Name" : "User64", "Age" : 64, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f4"), "Name" : "User65", "Age" : 65, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f5"), "Name" : "User66", "Age" : 66, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f6"), "Name" : "User67", "Age" : 67, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f7"), "Name" : "User68", "Age" : 68, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f8"), "Name" : "User69", "Age" : 69, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3f9"), "Name" : "User70", "Age" : 70, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3fa"), "Name" : "User71", "Age" : 71, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3fb"), "Name" : "User72", "Age" : 72, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3fc"), "Name" : "User73", "Age" : 73, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3fd"), "Name" : "User74", "Age" : 74, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3fe"), "Name" : "User75", "Age" : 75, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ff"), "Name" : "User76", "Age" : 76, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c400"), "Name" : "User77", "Age" : 77, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c401"), "Name" : "User78", "Age" : 78, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c402"), "Name" : "User79", "Age" : 79, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
> db.testcoll.insert({Name: "User101",Age: 101,Gender: "F",Address: "Beijing,Chian"})
WriteResult({ "nInserted" : 1 })
> db.testcoll.find({Address: {$exists: true}})
{ "_id" : ObjectId("55adf56044061abfb9ba93f2"), "Name" : "User101", "Age" : 101, "Gender" : "F", "Address" : "Beijing,Chian" }
> db.testcoll.find({Address: {$exists: false}})
{ "_id" : ObjectId("55adefd39883f07d0866c3b4"), "Name" : "User1", "Age" : 1, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b5"), "Name" : "User2", "Age" : 2, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b6"), "Name" : "User3", "Age" : 3, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b7"), "Name" : "User4", "Age" : 4, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b8"), "Name" : "User5", "Age" : 5, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3b9"), "Name" : "User6", "Age" : 6, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3ba"), "Name" : "User7", "Age" : 7, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bb"), "Name" : "User8", "Age" : 8, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bc"), "Name" : "User9", "Age" : 9, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3be"), "Name" : "User11", "Age" : 11, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3bf"), "Name" : "User12", "Age" : 32, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c0"), "Name" : "User13", "Age" : 13, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c2"), "Name" : "User15", "Age" : 15, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c3"), "Name" : "User16", "Age" : 16, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c4"), "Name" : "User17", "Age" : 17, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c5"), "Name" : "User18", "Age" : 18, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c6"), "Name" : "User19", "Age" : 19, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c7"), "Name" : "User20", "Age" : 20, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c8"), "Name" : "User21", "Age" : 21, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c3c9"), "Name" : "User22", "Age" : 22, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> db.testcoll.update({Age: {$gt:80}},{$set: {Gender: "F"}})
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 0 })
> db.testcoll.find({Age: {$gte: 80}})
{ "_id" : ObjectId("55adf56044061abfb9ba93f2"), "Name" : "User101", "Age" : 101, "Gender" : "F", "Address" : "Beijing,Chian" }
{ "_id" : ObjectId("55adefd49883f07d0866c403"), "Name" : "User80", "Age" : 80, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c404"), "Name" : "User81", "Age" : 81, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c405"), "Name" : "User82", "Age" : 82, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c406"), "Name" : "User83", "Age" : 83, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c407"), "Name" : "User84", "Age" : 84, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c408"), "Name" : "User85", "Age" : 85, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c409"), "Name" : "User86", "Age" : 86, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40a"), "Name" : "User87", "Age" : 87, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40b"), "Name" : "User88", "Age" : 88, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40c"), "Name" : "User89", "Age" : 89, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40d"), "Name" : "User90", "Age" : 90, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40e"), "Name" : "User91", "Age" : 91, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40f"), "Name" : "User92", "Age" : 92, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c410"), "Name" : "User93", "Age" : 93, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c411"), "Name" : "User94", "Age" : 94, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c412"), "Name" : "User95", "Age" : 95, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c413"), "Name" : "User96", "Age" : 96, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c414"), "Name" : "User97", "Age" : 97, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c415"), "Name" : "User98", "Age" : 98, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> db.testcoll.update({Age: {$gt:85}},{$set: {Gender: "F"}},{multi:true})
WriteResult({ "nMatched" : 16, "nUpserted" : 0, "nModified" : 15 })
> db.testcoll.find({Age: {$gte: 80}})
{ "_id" : ObjectId("55adf56044061abfb9ba93f2"), "Name" : "User101", "Age" : 101, "Gender" : "F", "Address" : "Beijing,Chian" }
{ "_id" : ObjectId("55adefd49883f07d0866c403"), "Name" : "User80", "Age" : 80, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c404"), "Name" : "User81", "Age" : 81, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c405"), "Name" : "User82", "Age" : 82, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c406"), "Name" : "User83", "Age" : 83, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c407"), "Name" : "User84", "Age" : 84, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c408"), "Name" : "User85", "Age" : 85, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c409"), "Name" : "User86", "Age" : 86, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40a"), "Name" : "User87", "Age" : 87, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40b"), "Name" : "User88", "Age" : 88, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40c"), "Name" : "User89", "Age" : 89, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40d"), "Name" : "User90", "Age" : 90, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40e"), "Name" : "User91", "Age" : 91, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40f"), "Name" : "User92", "Age" : 92, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c410"), "Name" : "User93", "Age" : 93, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c411"), "Name" : "User94", "Age" : 94, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c412"), "Name" : "User95", "Age" : 95, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c413"), "Name" : "User96", "Age" : 96, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c414"), "Name" : "User97", "Age" : 97, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c415"), "Name" : "User98", "Age" : 98, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more
> db.testcoll.update({Name: "User92"},{$unset:{PreferBooks: ""}})
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 0 })
> db.testcoll.find({Age: {$gte: 80}})
{ "_id" : ObjectId("55adf56044061abfb9ba93f2"), "Name" : "User101", "Age" : 101, "Gender" : "F", "Address" : "Beijing,Chian" }
{ "_id" : ObjectId("55adefd49883f07d0866c403"), "Name" : "User80", "Age" : 80, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c404"), "Name" : "User81", "Age" : 81, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c405"), "Name" : "User82", "Age" : 82, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c406"), "Name" : "User83", "Age" : 83, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c407"), "Name" : "User84", "Age" : 84, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c408"), "Name" : "User85", "Age" : 85, "Gender" : "M", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c409"), "Name" : "User86", "Age" : 86, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40a"), "Name" : "User87", "Age" : 87, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40b"), "Name" : "User88", "Age" : 88, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40c"), "Name" : "User89", "Age" : 89, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40d"), "Name" : "User90", "Age" : 90, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40e"), "Name" : "User91", "Age" : 91, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c40f"), "Name" : "User92", "Age" : 92, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c410"), "Name" : "User93", "Age" : 93, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c411"), "Name" : "User94", "Age" : 94, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c412"), "Name" : "User95", "Age" : 95, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c413"), "Name" : "User96", "Age" : 96, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c414"), "Name" : "User97", "Age" : 97, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
{ "_id" : ObjectId("55adefd49883f07d0866c415"), "Name" : "User98", "Age" : 98, "Gender" : "F", "PreferBook" : [ "first book", "Second book" ] }
Type "it" for more

 










本文转自 zouqingyun 51CTO博客，原文链接：http://blog.51cto.com/zouqingyun/1676771，如需转载请自行联系原作者
文章标签：
云数据库 MongoDB 版
NoSQL
Shell
数据库
存储
关键词：
云数据库 MongoDB 版安装
相关实践学习
MongoDB数据库入门
MongoDB数据库入门实验。
快速掌握 MongoDB 数据库
本课程主要讲解MongoDB数据库的基本知识，包括MongoDB数据库的安装、配置、服务的启动、数据的CRUD操作函数使用、MongoDB索引的使用（唯一索引、地理索引、过期索引、全文索引等）、MapReduce操作实现、用户管理、Java对MongoDB的操作支持（基于2.x驱动与3.x驱动的完全讲解）。 通过学习此课程，读者将具备MongoDB数据库的开发能力，并且能够使用MongoDB进行项目开发。 &nbsp; 相关的阿里云产品：云数据库 MongoDB版 云数据库MongoDB版支持ReplicaSet和Sharding两种部署架构，具备安全审计，时间点备份等多项企业能力。在互联网、物联网、游戏、金融等领域被广泛采用。 云数据库MongoDB版（ApsaraDB for MongoDB）完全兼容MongoDB协议，基于飞天分布式系统和高可靠存储引擎，提供多节点高可用架构、弹性扩容、容灾、备份回滚、性能优化等解决方案。 产品详情: https://www.aliyun.com/product/mongodb
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