Key Differences Between PostgreSQL and MongoDB
The Major differences between PostgreSQL and MongoDB are explained in the table below:
| Feature | PostgreSQL | MongoDB |
|---|---|---|
|
Built By |
MongoDB was started in 2007 by 10Gen, which created the product based on the word humongous10Gen |
PostgreSQL is an open-source project maintained by PostgreSQL Global Development Group and their prolific community |
| Database Type | Relational Database Management System (RDBMS) | Non-Relational, Document-Oriented Database |
| SQL Support | Supports SQL | Supports MongoDB Query Language (similar to JavaScript) |
|
Built Using |
PostgreSQL was written in C |
MongoDB was written in C++ |
| Schema | Requires predefined schema | Dynamic schemas allows documents to have different fields |
| Scalability | Scales up vertically | Scales out horizontally |
| ACID Compliance | Supports full ACID compliance | Recently added support for ACID transactions across multiple documents |
| Data Model | Tables with predefined schemas | Documents with dynamic schemas |
| Data Storage | Stores data in tables | Stores data in JSON-like documents |
| Query Performance | Optimized for complex queries | Optimized for fast data retrieval and insertion |
Let’s understand more about these databases individually:
Difference between PostgreSQL and MongoDB
The main difference between PostgreSQL and MongoDB is that PostgreSQL is a relational database management system that uses SQL, whereas MongoDB is a non-relational, document-oriented database that stores data in flexible, JSON-like documents.