MongoDB vs PostgreSQL 9 Key Differences by Oudel Inc


How would you feel if you were to visit a website, add items to a shopping cart, and navigate away from the site only to come back to an empty cart? One of the things that we may struggle with as developers when working on a green field project is our stack. Choosing the right tech to solve a problem can be a harrowing experience. Databases in particular can be a bit tough if we’re unsure how our data is going to be used. PostgreSQL uses load balancing, connection pooling tools, and partitioning to offer scalability.

difference between postgresql and mongodb

PostgreSQL’s focus on data consistency and reliability makes it an ideal choice for applications demanding rigorous transactional support and relational modelling. PostgreSQL’s strength lies in its structured, relational model and commitment to data integrity. In conclusion, MongoDB and PostgreSQL are two powerful database solutions.

Community support

MongoDB and PostgreSQL are ACID compliant but achieve this in slightly different ways. MongoDB uses multi-document transactions, which allow you to transact on multiple documents in a single operation. PostgreSQL, on the other arm, supports consecutive SQL transactions, which are more familiar to developers. PostgreSQL is the go-to choice for applications where data accuracy, complex transactions, and strict adherence to business rules are paramount.

difference between postgresql and mongodb

Undoubtedly, PostgreSQL stands as the best-choice database due to its rich features and aggressive development efforts by PostgreSQL developers. Most every organization uses PostgreSQL today, and most domains are adopting PostgreSQL for their applications as well as looking to migrate their legacy applications to it. If you are migrating away from legacy oracle database and want to accomplish this task in days instead of months, see EDB Postgres Advanced Server.

ACID transactions for changes to many documents

With the support for spatial data types, PostgreSQL is no doubt a complete multi-model database. MongoDB and PostgreSQL are the most exoteric and widely used database management systems. Although both are designed to store and operate data, they have some important differences in architecture, functionality, performance, and scalability.

  • With the organization of a database, you can learn a lot more about your data, as it makes that information readily available to assist decision making.
  • A lot of things have changed since
    then, but one thing still holds true, it’s always painful to migrate databases.
  • But if you have many incumbent applications based on relational data models and teams seasoned just in SQL, a document database like MongoDB may not be a good fit.
  • While document databases are able to do JOINs, they’re performed in a different way from multi-page SQL statements that are often needed and generated automatically by BI tools.
  • Choosing between MongoDB and PostgreSQL trusts the specific needs of the project.

This is a terrific option if your concerns include exploring the limits of SQL, serving up a huge number of queries from many tables, and compatibility. This post isn’t about picking one or either apart — our aim is to help you get a firm grasp of each database’s character and understand which use cases both databases serve best. Microsoft Azure is a cloud computing service that offers a range of storage options….

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It’s capable of powering massive applications regardless of it being measured by data sizes or users. This scale-out approach depends on the use of a growing number of smaller, generally more cost-effective machines. You can accelerate MongoDB’s query performance if you make indexes on fields in documents and sub documents. This database enables all document fields to be indexed and queried simply, as well as those that are deep within sub documents and arrays. At the start of development projects, it’s common for project leaders to have a clear understanding of the use case — but not of the specific features their users need in an application.

MySQL is designed to be open-source and has a vast and active community. It is compatible with various operating systems, including Linux, OS X, Solaris, and Windows. Many prominent companies across diverse industries rely on MySQL for their data management needs. These include industry leaders like Airbnb, Sony, BBC, YouTube, Spotify, GitHub, and countless others. Indexing is creating data structures that allow fast and efficient data retrieval. Both MongoDB and PostgreSQL are backing indexing, but they do it differently.


By default, MongoDB doesn’t use SQL — it provides users with a unique query language instead (MQL). This can be used to work with documents in MongoDB and take out data, and it delivers much of the flexibility and power that SQL does. MongoDB offers more flexibility and scalability, while PostgreSQL provides greater security and customization. However, there are many other databases available that may better suit your project’s requirements. It stores data in dynamic JSON-like documents and supports easy query, manipulation, and storage of data.

PostgreSQL’s manual indexing provides more control over how indexes are created and maintained, which can lead to better performance. Indexing is creating data structures that allow for quick and efficient data retrieval. Both MongoDB and PostgreSQL support indexing, but they do it differently.

Can PostgreSQL replace MySQL?

MongoDB offers client-side, field-level encryption through TLS and SSL (Transport Layer Security and Secure Sockets Layer). TLS and SSL are both internet encryption protocols that make HTTP (Hypertext Transfer Protocol) turn into HTTPS (Hypertext Transfer Protocol Secure). In fact, TLS is simply an upgraded SSL of sorts, created to reduce security vulnerabilities. Additionally, MongoDB has various safeguards to ensure the proper authentication of user identities. One of the most important parts of the function of any company is a secure database. With phishing attacks, malware, and other threats on the rise, it is essential that you make the right choice to keep your data safe and process it effectively.

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The main difference between a relational database such as PostgreSQL and a document-oriented database such as MongoDB is that you don’t need to know the structure of data in the latter option. With relational databases, you need to design the table around the data structure, and any data that doesn’t fit the design can’t be stored. A relational database will reject data that doesn’t adhere to column design rules. A traditional RDBMS (relational database management system), such as PostgreSQL, has a script schema and requires a primary key. MongoDB is a non-relational database that stores data in dynamic JSON-like documents, while PostgreSQL is an object-relational database that stores data in pre-defined tables with rows and columns.

Matplotlib Logarithmic Scale

Both databases have their strengths and weaknesses, and it’s important to thoroughly evaluate the project’s requirements before deciding. Regardless of the choice, it’s important to consider the selected database’s security, reliability, and maintainability. Replication is copying data from one database to another to mongodb vs postgresql ensure high availability and redundancy. Both MongoDB and PostgreSQL support replication, but they do it in slightly different ways. MongoDB uses replica sets consisting of multiple nodes that synchronize data. PostgreSQL uses streaming replication, which involves real-time data copying from one server to another.

difference between postgresql and mongodb

Date: March 29, 2022