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Databases · head to head

Oracle Database vs QuestDB

Oracle Database logo

Oracle Database

Databases

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

From
Free
Rated
-
Full reviewWebsite
QuestDB logo

QuestDB

Databases

Fast open source time-series database for high throughput ingestion

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; QuestDB open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • They diverge on capability: Oracle Database covers PL/SQL, QuestDB covers High Throughput Ingestion.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Oracle Database and QuestDB differ
AttributeOracle DatabaseQuestDB
Pricing modelUnknownopen-source
PlatformsOn-premises, Oracle Cloud, Linux, Windows, UnixDocker, Kubernetes, Cloud (AWS, Azure, GCP)
Founded19772014

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

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 QuestDB

  • High Throughput Ingestion
  • SQL Support
  • Time-series Optimization
  • SIMD Vectorization
  • Column-oriented Storage
  • Built-in Web Console
  • InfluxDB Line Protocol
  • PostgreSQL

Both cover

  • Linux support
  • Windows support

What people use each for

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

Oracle Database

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

QuestDB

  • Time-series analytics ingesting up to 20M rows/second from IoT sensors or financial data feedsnot Oracle Database
  • Real-time dashboarding with 32ms time-to-first-row latency for minute-level analyticsnot Oracle Database
  • Applications requiring multi-tier storage (hot ingest, real-time SQL, cold Parquet archive)not 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

QuestDB

  • Open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • Enterprise edition pricing not published; requires contacting sales for custom quote
  • Ingestion limit of 20M rows/sec platform-dependent; may not scale to extreme throughput requirements

Pricing, plan by plan

Oracle Database

Free

No published plan breakdown. See the Oracle Database review.

QuestDB

Free

No published plan breakdown. See the QuestDB review.

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 QuestDB if

  • You need high throughput ingestion.
  • You want to start without paying.
  • You work on Docker, Kubernetes, Cloud (AWS, Azure, GCP).
  • You also want sql support.
QuestDB review

Questions people ask

Is Oracle Database or QuestDB better?
Neither clearly leads. Oracle Database starts at Free and QuestDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Oracle Database or QuestDB?
Oracle Database starts at Free and QuestDB at Free.
Does Oracle Database or QuestDB run on more platforms?
Oracle Database runs on On-premises, Oracle Cloud, Linux, Windows, Unix. QuestDB runs on Docker, Kubernetes, Cloud (AWS, Azure, GCP).
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 QuestDB is typically brought in for.
What can Oracle Database do that QuestDB cannot?
Oracle Database covers PL/SQL, Real Application Clusters, Data Guard, Advanced Compression. QuestDB covers High Throughput Ingestion, SQL Support, Time-series Optimization, SIMD Vectorization. Both handle Linux support, Windows support.

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
QuestDB: How much does QuestDB Enterprise cost?

QuestDB does not publish specific pricing for the Enterprise tier. Customers must contact QuestDB via their enterprise contact form to receive a custom quote.

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
QuestDB: Does QuestDB offer a free version?

Yes, QuestDB Open Source is completely free and recommended for evaluation, prototyping, and pilot projects. Enterprise features, high availability, security, and dedicated support require the paid Enterprise tier.

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
QuestDB: What deployment options does QuestDB offer?

QuestDB offers open source deployment, Enterprise deployment, and Bring Your Own Cloud (BYOC) deployment. Pricing details for BYOC and Enterprise tiers are not published and require direct contact with sales.

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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