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Databases · head to head

Oracle Database vs Postgres

Oracle Database logo

Oracle Database

Databases

The world's most complete, reliable, and secure database

From
Free
Rated
-
Full reviewWebsite
Postgres logo

Postgres

Technology

The world's most advanced open source database

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Oracle Database high licensing costs for Enterprise Edition with option packs potentially doubling the effective per-processor cost; Postgres each major version is supported for only 5 years after its initial release, after which it is end-of-life
  • They diverge on capability: Oracle Database covers PL/SQL, Postgres covers ACID compliance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Oracle Database and Postgres actually diverge.

Attributes where Oracle Database and Postgres differ
AttributeOracle DatabasePostgres
Pricing modelUnknownopen-source
PlatformsOn-premises, Oracle Cloud, Linux, Windows, UnixLinux, Windows, Macos, Docker
CategoryDatabasesTechnology
Founded19771996

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Oracle Database

  • PL/SQL
  • Real Application Clusters
  • Data Guard
  • Advanced Compression
  • Partitioning
  • In-memory Database
  • Multitenant Architecture
  • Oracle Cloud

Only in Postgres

  • ACID compliance
  • Complex queries
  • Foreign keys
  • Triggers
  • Views
  • Stored procedures
  • JSON/JSONB support
  • Full-text search

What people use each for

The jobs each tool is most often brought in to do.

Oracle Database

  • Transaction processingnot Postgres
  • Data storagenot Postgres
  • Application backendnot Postgres
  • Reportingnot Postgres
  • Data analyticsnot Postgres

Postgres

  • Running a general purpose relational database for applicationsnot Oracle Database
  • Self-hosting an open source SQL database with no licence feenot Oracle Database
  • Workloads needing extensions, JSON and full text search in one enginenot Oracle Database

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Oracle Database

  • High licensing costs for Enterprise Edition with option packs potentially doubling the effective per-processor cost
  • Requires skilled database administrators for proper setup, configuration, and maintenance
  • High hardware requirements increase infrastructure costs; less suitable for resource-constrained environments

Postgres

  • Each major version is supported for only 5 years after its initial release, after which it is end-of-life
  • Major version upgrades break on-disk compatibility and require a full dump and reload or the pg_upgrade tool
  • New major versions ship about once a year, so staying supported means a disruptive upgrade cycle
  • Minor releases contain only frequently-encountered bug fixes, low-risk fixes, security issues and data corruption fixes, so feature gaps are not addressed within a major version
  • There is no vendor SLA; commercial support must be bought separately from third party professional services listed by the project

Pricing, plan by plan

Oracle Database

Free

No published plan breakdown. See the Oracle Database review.

Postgres

Free
  • Community EditionFree
    • Full database features
    • No limitations
    • Community support

Which should you pick?

Choose Oracle Database if

  • You need pl/sql.
  • You want to start without paying.
  • You work on On-premises, Oracle Cloud, Linux, Windows, Unix.
  • You also want real application clusters.
Oracle Database review

Choose Postgres if

  • You need acid compliance.
  • You want to start without paying.
  • You work on Linux, Windows, Macos, Docker.
  • You also want complex queries.
Postgres review

Questions people ask

Is Oracle Database or Postgres better?
Neither clearly leads. Oracle Database starts at Free and Postgres at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Oracle Database or Postgres?
Oracle Database starts at Free and Postgres at Free.
Does Oracle Database or Postgres run on more platforms?
Oracle Database runs on On-premises, Oracle Cloud, Linux, Windows, Unix. Postgres runs on Linux, Windows, Macos, Docker.
Can I use Oracle Database for free?
Both have a free tier, so you can try either at no cost before committing.
What is Oracle Database best used for?
Oracle Database is most often used for transaction processing, data storage, application backend, reporting. Of those, transaction processing and data storage are not what Postgres is typically brought in for.
What can Oracle Database do that Postgres cannot?
Oracle Database covers PL/SQL, Real Application Clusters, Data Guard, Advanced Compression. Postgres covers ACID compliance, Complex queries, Foreign keys, Triggers.

Answered from the vendors’ own pages

Oracle Database: What is the licensing cost of Oracle Database Enterprise Edition?

Oracle Database Enterprise Edition is priced at 47,500 USD per processor as of April 2026. Named User Plus licensing costs 950 USD per user. Pricing varies based on licensing metric chosen.

Source
Postgres: How much does PostgreSQL cost to use?

PostgreSQL is completely free to download, install, and use. No licensing fees, subscription costs, or per-seat charges apply. The database is open source under the PostgreSQL License. Source: https://www.postgresql.org

Source
Oracle Database: Does Oracle Database offer a free tier or trial?

Oracle Database offers Oracle Database Free Edition, a no-cost version for development and testing. However, no free trial is available for paid editions.

Source
Postgres: Are there commercial PostgreSQL support options available?

Official PostgreSQL (the project) is free. Commercial PostgreSQL services such as hosting, professional support, training, and managed database services are offered by third-party vendors, not the PostgreSQL project itself. Source: https://www.postgresql.org

Source
Oracle Database: What are the deployment options for Oracle Database?

Oracle Database can be deployed on premises or through Oracle Cloud Infrastructure. Pricing and features vary based on deployment model selected.

Source
Postgres: Do I need a license to use PostgreSQL commercially?

No. PostgreSQL is open source under the PostgreSQL License, which permits free commercial use without royalties, licensing fees, or support obligations. Source: https://www.postgresql.org

Source
Oracle Database: What database management capabilities does Oracle Database provide?

Oracle Database is a converged, multi-model database management system offering in-memory computing, NoSQL, and MySQL database options with comprehensive data management and security features.

Source
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