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Exasol vs MonetDB

Exasol: In-memory MPP columnar analytics database from Germany, tuned for fast BI with little tuning. MonetDB: Pioneering open-source column-store from CWI, still a lean research-grade analytical SQL database.

key differences

  • Licensing: Exasol is proprietary (Proprietary); MonetDB is open source (copyleft) (Mozilla Public License 2.0).
  • Exasol is built for larger datasets (≤ 1 PB) than MonetDB (≤ 10 TB).
  • Horizontal scaling is native in Exasol and manual in MonetDB.
  • Only Exasol has in-memory, compression, encryption at rest.
  • Only MonetDB has secondary indexes, triggers.

choose exasol for

  • +BI acceleration layer for Tableau or Power BI
  • +EU data-sovereign analytics
  • +Replacing slow legacy warehouses
  • +In-database data science

best at · Warehouse, OLAP

choose monetdb for

  • +Single-server analytical database
  • +Scientific and research data analysis
  • +Teaching and database research

best at · OLAP, Warehouse, Scientific

ExasolIn-memory MPP columnar analytics database from Germany, tuned for fast BI with little tuning.
MonetDBPioneering open-source column-store from CWI, still a lean research-grade analytical SQL database.
overview
Primary model
Columnar / OLAP
Columnar / OLAP
Also supports
Relational, Spatial
Relational, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
Exasol AG
MonetDB Foundation (CWI spin-off)
First release
2000
2004
Latest version
2026.1.0 (May 26, 2026)
11.55.3 (2026)
License
ProprietaryProprietary
Open source (copyleft)Mozilla Public License 2.0
Free tier
✓
✓
popularity
WhichDB Score
31.0
24.2
Rank
#83
#125
GitHub stars
–
485
Stack Overflow questions
89
447
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Medium (≤ 10 TB)
Horizontal scaling
Native
Manual
Multi-region
None
None
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Distributed, In memory, Client server
Single node, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
—
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
AWS, Azure, Google Cloud
–
capabilities
Transactions
✓
✓
Joins
✓
✓
Secondary indexes
—
✓
Full-text search
—
—
Vector search
—
—
Geospatial
✓
✓
JSON
✓
✓
Change data capture
—
—
Triggers
—
✓
Stored procedures
✓
✓
Materialized views
—
—
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
✓
✓
In-memory
✓
—
Durable persistence
✓
✓
Compression
✓
—
Encryption at rest
✓
—
Role-based access
✓
✓
Time travel
—
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
SQL, Lua, Python UDFs, R UDFs, Java UDFs
SQL, Python UDFs, R UDFs
Client languages
Python, Java, .NET, Go, JavaScript
Python, Java, C, R, JavaScript
Best for
Warehouse, OLAP
OLAP, Warehouse, Scientific
Add more to this comparisonNot sure either fits? Try smart match

Exasol vs MonetDB: FAQ

What is the difference between Exasol and MonetDB?

Exasol: In-memory MPP columnar analytics database from Germany, tuned for fast BI with little tuning. MonetDB: Pioneering open-source column-store from CWI, still a lean research-grade analytical SQL database. Licensing: Exasol is proprietary (Proprietary); MonetDB is open source (copyleft) (Mozilla Public License 2.0). Exasol is built for larger datasets (≤ 1 PB) than MonetDB (≤ 10 TB). Horizontal scaling is native in Exasol and manual in MonetDB.

When should I choose Exasol over MonetDB?

Choose Exasol for BI acceleration layer for Tableau or Power BI, EU data-sovereign analytics and replacing slow legacy warehouses. Choose MonetDB for single-server analytical database; scientific and research data analysis; and teaching and database research.

Is Exasol or MonetDB more popular?

Exasol ranks #83 on the WhichDB Score (31.0/100) and MonetDB ranks #125 (24.2/100). Popularity is not fit: check the requirements that matter for your project.

Are Exasol and MonetDB open source?

No. Exasol is proprietary, closed-source software. Yes. MonetDB is open source. License: Mozilla Public License 2.0.