Comparison Between PostgreSQL and MySQL

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Key Differences Between PostgreSQL and MySQL Database

Ever asked a question:  Which database you will prefer? Postgres over MySQL and MySQL over Postgres. I would say the answer would depend upon your preferences. Both the database has there pros and cons and here. I am just listing down them to help you take to determine which of the two databases to use in your own development.

Here the comparison is based on the default installations of both PostgreSQL and MySQL.


  1. ACID Compliance (atomicity, consistency, isolation, and durability):
    PostgreSQL is ACID compliant from the ground up and ensures that all requirements are met.
  2. It is used in large systems where read and write speed is crucial. To make complex queries. This is comparatively slower.
  3. Foreign key support, Views, Stored procedures, Triggers, Unions, Full joins, and Constraints are supported in SVN.
  4. No different types of tables.
  5. PostgreSQL has ROLES and inherited roles to set and maintain permissions. Supports SSL for server communications and row level security.
  6. Supports a wide range of programming languages.
  7. PostgreSQL has several features dedicated to extensibility. It is possible to add new types, new functions, new index types, etc.
  8. Completely open source.
  9. Closer to ANSI SQL standard.


  1. MySQL is only ACID compliant when using InnoDB and NDB Cluster Storage engines.
  2. Useful in web-based applications where faster execution is needed. It has simpler database design. There’s no need for clean-ups in MYSQL(Vacuum).
  3. All these features are not supported.
  4. Supports different types of tables.
  5. Security based on Access Control Lists (ACLs) for all connections and queries.
  6. Limited support for server-side programming in a single language which is not extensible.
  7. Doesn’t support extensibility.
  8. Open source, but owned by Oracle and offers commercial versions.
  9. Follows some of the ANSI SQL standards.

Hope this helps you next time when you have to choose the database for any of your development especially when the choice is between Postgres and MySQL.


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Nisha Sahu

BI Developer

Helical IT Solutions Pvt Ltd

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