NoSQL

https://www.w3resource.com/mongodb/nosql.php

NoSQL databases (aka "not only SQL") are non-tabular databases and store data differently than relational tables. NoSQL databases come in a variety of types based on their data model. The main types are document, key-value, wide-column, and graph. They provide flexible schemas and scale easily with large amounts of data and high user loads.

NoSQL database features

Each NoSQL database has its own unique features. At a high level, many NoSQL databases have the following features:

  •     Flexible schemas
  •     Horizontal scaling
  •     Fast queries due to the data model
  •     Ease of use for developers

Types of NoSQL databases

Over time, four major types of NoSQL databases emerged: document databases, key-value databases, wide-column stores, and graph databases.

  •     Document databases store data in documents similar to JSON (JavaScript Object Notation) objects. Each document contains pairs of fields and values. The values can typically be a variety of types including things like strings, numbers, booleans, arrays, or objects.
  •     Key-value databases are a simpler type of database where each item contains keys and values.
  •     Wide-column stores store data in tables, rows, and dynamic columns.
  •     Graph databases store data in nodes and edges. Nodes typically store information about people, places, and things, while edges store information about the relationships between the nodes.

https://www.mongodb.com/

https://en.wikipedia.org/wiki/MongoDB


Free online MongoDB courses:

MongoDB for SQL Pros
INTRODUCTORY
Learn how to map your relational databases knowledge to MongoDB.
Estimated Total Effort
2 Hours

https://university.mongodb.com/courses/M100/about

MongoDB Basics
INTRODUCTORY
Learn the fundamentals of MongoDB.
Estimated Total Effort

8.5 Hours

https://university.mongodb.com/courses/M001/about


Redis

https://try.redis.io/

Última modificación: Monday, 21 de March de 2022, 13:34