留学生考试辅导 CS602

Andrew ET CS602

MongoDB is a NoSQL database. Stores data in

Copyright By PowCoder代写 加微信 powcoder

name : ¡° . Trump¡±,
skills: [¡°Fires Staff¡±, ¡°Finger-pointer¡±, ¡°Embarrassing¡±]
key-value pairs

DIFFERENCES
NOSQL V. SQL

DIFFERENCES
NOSQL V. SQL

NOSQL DATABASES
Columnar Database Optimized for reading/writing columns of
data as opposed to rows of data
Hbase, Database
Data as documents
MongoDB, CouchDB
Graph Database
Focus on how data relates to other data
Key-Value Store
Uses a big hash table of keys and values.
Amazon S3, Riak, Dynamo

NOSQL DATABASES

DOCUMENT-CENTRIC DATABASES
MONGODB CAN HAVE SEVERAL DATABASES WITHIN

DOCUMENT CENTRIC DATABASES
DB (HAS) COLLECTIONS (HAS) DOCUMENTS

DOCUMENT-CENTRIC DATABASES:
Fields can vary from document to document.
Structure can change over

STRUCTURES AND VALUES

DOCUMENT(S)

LIKE AN OBJECT
Documents in a NoSQL database are very similar to the concept of an Object.
name : ¡° . Trump¡±,
reported_taxes : ¡°Unknown/Not made public¡±, skills: [¡°!(public speaker)¡±, ¡°Delegation¡±]

SETUP HINTS FOR WINDOWS 10:
INSTALL THE 64-BIT VERSION
Install to C:>mongodb
Install the database files under C:/data/db

程序代写 CS代考 加微信: powcoder QQ: 1823890830 Email: powcoder@163.com