MongoDB vs PostgreSQL Complete Comparison in 2022

MongoDB vs PostgreSQL Complete Comparison in 2022

MongoDB and PostgreSQL are both different types of databases, and both serve different purposes. We will explore the features, advantages, and use cases that will lead to selecting these databases. So let’s get started.

What is mongoDB?

MongoDB is the most popular open-source No-SQL database. It is a document-based database. MongoDB, a No-SQL database, is not relational and can have a dynamic schema.

Dynamic schema means you don’t have to define the schema before inserting a document into mongoDB.

MongoDB gives us the flexibility to change the data schema at any time.MongoDB can handle operational, transactional, and analytical workloads easily.

What is PostgreSQL?

PostgresSQL is one of the most popular RDBMS(relational database management system) and is entirely open-source. In PostgreSQL, the data is stored as structured objects. PostgresSQL is a SQL database, and it follows the standard SQL queries. It is mainly used to store data that follows a particular structure.

mongodb vs PostgreSQL general difference



Mongodb is a No-SQL database

PostgreSQL is a SQL database

MongoDB is open-source. It also has an enterprise edition that provides more features and functionality.

PostgreSQL is also open-source.

In MongoDB, data is saved in the form of JSON documents.

PostgreSQL saves data in rows and columns.

In MongoDB, there is a wide variety of drivers available using which we can interact with it. There are drivers for C, C++, python, java, etc.

PostgreSQL supports languages like C, C++, python, and java.

In MongoDB, you can insert documents with varying schema. All documents should not have to adhere to a fixed schema.

InPostgreSQL, you can not insert records that have a varying schema.

In MongoDB, you don’t have to specify the schema before inserting the records.

In PostgreSQL, you must define the table schema before inserting the records.

MongoDB supports javascript(BSON) as a query language

PostgreSQL supports SQL as a query language.

MongoDB does not support joins.

PostgreSQL supports joins

MongoDB can easily handle a large amount of data.

PostgreSQL is slow as compared to mongodb while handling extensive data.

It is the best-suited database for IoT and real-time analytics

usePostgreSQL if you need a transactional and ACID-compliant database.

MongoDB has the potential for ACID compliance

InPostgreSQL, ACID compliance is built-in

MongoDB does not support FOREIGN KEY constraints

PostgreSQL supportsFOREIGN KEY constraints. A foreign key can be a single column or a group of columns that you can use to create a link in data from multiple tables simultaneously.

Data is saved in the form of collection

Data is held in tables.

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About Writer

Ravinder Singh

Full Stack Developer
I have 12+ years of experience in commercial software development. I write this blog as a kind of knowledge base for myself. When I read about something interesting or learn anything I will write about it. I think when writing about a topic you concentrate more and therefore have better study results. The second reason why I write this blog is, that I love teaching and I hope that people find their way on here and can benefit from my content.

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