Getting Started with MongoDB

Window Install binary Package http://www.mongodb.org/downloads

Create a new directory C:\data\db

Start service mongod--dbpath C:\data\db

Start the client (shell) MONGO

Basic concepts

SQL Terminology/Concepts	MongoDB Terminology/Concepts	Explanation/Description
Database	Database	Database
Table	Collection	Database Tables/Collections
Row	Document	Data record Line/document {Key:value}
Column	Field	Data fields/Fields
Index	Index	Index
Table joins		Table connection, MongoDB not supported
Primary key	Primary key	Primary key, MongoDB automatically sets the _id field as the primary key

　　

Database Operations (DB.HELP ())

Show DBS shows all databases

DB Displays the current database

Use TestDB switch to TESDBT database, no new TESTDB database

Db.dropdatabase () Delete the currently located database

Set operation (Db.mycoll.help ())

Show collections Display all collections

Db.createcollection (name, {size: ..., capped: ..., max: ...}) Create a Collection

Db.coll.insert ({' xx ': ' xx ',...}) Inserts a document into the Coll collection, coll does not exist the new

Db.coll.find () To view all the documents in the Coll Collection, find (m,n) can specify the number of queries, find (). Sort () can be connected to use, there are other. Size (),. Count () ...

Db.coll.drop () Delete Coll collection

Manipulating MongoDB with Python

Pip Install Pymongo

Import= Pymongo. Mongoclient ()   can pass parameters (' localhost ', 27017)  or  = client['testdb']     or   = db['posts')       or Db.postsposts.insert ({'xx  ':'xx', ...})   Posts.find ()     

Getting started with MongoDB