What is MongoDB

MongoDB is an open source NoSQL database management program. NoSQL (Not only SQL) is used as an alternative to traditional relational databases. NoSQL databases are quite useful for working with large sets of distributed data. MongoDB is a tool that can manage document-oriented information, store or retrieve information.

MongoDB is used for high-volume data storage, helping organizations store large amounts of data while still performing rapidly. Organizations also use MongoDB for its ad-hoc queries, indexing, load balancing, aggregation, server-side JavaScript execution and other features.

Structured Query Language (SQL) is a standardized programming language that is used to manage relational databases. SQL normalizes data as schemas and tables, and every table has a fixed structure.

Instead of using tables and rows as in relational databases, as a NoSQL database, the MongoDB architecture is made up of collections and documents. Documents are made up of Key-value pairs -- MongoDB's basic unit of data. Collections, the equivalent of SQL tables, contain document sets. MongoDB offers support for many programming languages, such as C, C++, C#, Go, Java, Python, Ruby and Swift.

More information can be found here.

DB Types

There are two basic types of databases in the world of databases, SQL and non-SQL,

• SQL:
  • Structured Query Language databases are relational databases. We pre-define a schema of tables, before we define anything. Some examples are:
    • MySQL
    • Postgres
    • SQLite
    • Oracle
    • Microsoft SQL Server
• NO-SQL:
  • NO-SQL databases do not use SQL. There are many types of no-sql databases, including document, key-value, and graph stores. Some examples are:
    • MongoDB
    • CouchDB
    • Neo4j
    • Cassandra
    • Redis