PostgreSQL vs MySQL: Head-to-Head Comparison

Quick Verdict

PostgreSQL is the better pick for general-purpose relational workloads. MySQL is the better pick for web applications needing a proven relational database.

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At a Glance

Feature	PostgreSQL	MySQL
Best For	General-purpose relational workloads	Web applications needing a proven relational database
Pricing	Free and open source	Free and open source
Free to Start	Yes	Yes
License	Open source	Open source
Deployment	Self-hosted or managed cloud	Self-hosted or managed cloud
Link	Visit PostgreSQL	Visit MySQL

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Detailed Breakdown

PostgreSQL

Advanced open-source relational database

Pros:

• Rich SQL features and extensions
• Strong standards compliance
• Huge ecosystem

Cons:

• Vacuum and tuning knowledge needed
• Horizontal scaling requires extra tooling

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MySQL

Popular open-source relational database owned by Oracle

Pros:

• Ubiquitous hosting support
• Fast reads
• Mature replication

Cons:

• Fewer advanced SQL features than Postgres
• Concerns about Oracle stewardship

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Key Differences

• Positioning: PostgreSQL — advanced open-source relational database. MySQL — popular open-source relational database owned by Oracle.
• Both share the same licensing model (open source), so the decision comes down to features and workflow fit.
• Pricing: PostgreSQL — free and open source. MySQL — free and open source.
• Signature strength: PostgreSQL — rich SQL features and extensions. MySQL — ubiquitous hosting support.

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Frequently Asked Questions

Is PostgreSQL better than MySQL?

It depends on your requirements. PostgreSQL is a strong fit for general-purpose relational workloads, while MySQL suits web applications needing a proven relational database.

Is PostgreSQL free to use?

Yes, you can start with PostgreSQL for free. Pricing model: Free and open source.

Is MySQL free to use?

Yes, you can start with MySQL for free. Pricing model: Free and open source.

Can I self-host PostgreSQL or MySQL?

PostgreSQL can be self-hosted. Deployment options: self-hosted or managed cloud. MySQL can be self-hosted. Deployment options: self-hosted or managed cloud.

What are the main drawbacks of PostgreSQL and MySQL?

PostgreSQL: vacuum and tuning knowledge needed; horizontal scaling requires extra tooling. MySQL: fewer advanced SQL features than Postgres; concerns about Oracle stewardship.