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ObjectDatabase++ vs Actian NoSQL (Versant)

ObjectDatabase++: Ekky Software's embedded C++ object database with B+tree, spatial, full-text and pattern indexes. Actian NoSQL (Versant): Enterprise object database formerly known as Versant, sold by Actian for complex object models.

key differences

  • Actian NoSQL (Versant) is built for larger datasets (≤ 10 TB) than ObjectDatabase++ (≤ 100 GB).
  • Horizontal scaling is none in ObjectDatabase++ and manual in Actian NoSQL (Versant).
  • Only ObjectDatabase++ has full-text search, geospatial.
  • Only Actian NoSQL (Versant) has online schema changes.

choose objectdatabase-plus-plus for

  • +C++ applications that need embedded object storage with spatial indexes
  • +Windows server components wanting custom index types

best at · Embedded, Geo

choose versant-object-database for

  • +Telecom network inventory and management
  • +Defence and transport systems with deep object models
  • +Maintaining existing Versant installations

best at · OLTP, Embedded

ObjectDatabase++Ekky Software's embedded C++ object database with B+tree, spatial, full-text and pattern indexes.
Actian NoSQL (Versant)Enterprise object database formerly known as Versant, sold by Actian for complex object models.
overview
Primary model
Object
Object
Also supports
Spatial
–
Type
Embedded library
Database engine
Status
Active
Active
Developer
Ekky Software Pty Ltd
Actian (HCLSoftware)
First release
2003
1990
Latest version
4.8.0 (Aug 1, 2026)
–
License
ProprietaryCommercial; free renewable developer license
ProprietaryCommercial (Actian)
Free tier
✓
—
popularity
WhichDB Score
0.0
3.1
Rank
#784
#445
GitHub stars
–
–
Stack Overflow questions
–
–
scale & guarantees
Comfortable data size
Small (≤ 100 GB)
Medium (≤ 10 TB)
Horizontal scaling
None
Manual
Multi-region
None
None
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Embedded
Client server, Distributed, Embedded
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
✓
✓
Edge
—
—
Clouds
–
–
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
C++ API, TScript
VQL (Versant Query Language), JPA (NoSQL JPA)
Client languages
C++, C#, VB.NET
C++, Java, C#
Best for
Embedded, Geo
OLTP, Embedded
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ObjectDatabase++ vs Actian NoSQL (Versant): FAQ

What is the difference between ObjectDatabase++ and Actian NoSQL (Versant)?

ObjectDatabase++: Ekky Software's embedded C++ object database with B+tree, spatial, full-text and pattern indexes. Actian NoSQL (Versant): Enterprise object database formerly known as Versant, sold by Actian for complex object models. Actian NoSQL (Versant) is built for larger datasets (≤ 10 TB) than ObjectDatabase++ (≤ 100 GB). Horizontal scaling is none in ObjectDatabase++ and manual in Actian NoSQL (Versant). Only ObjectDatabase++ has full-text search, geospatial.

When should I choose ObjectDatabase++ over Actian NoSQL (Versant)?

Choose ObjectDatabase++ for C++ applications that need embedded object storage with spatial indexes and windows server components wanting custom index types. Choose Actian NoSQL (Versant) for telecom network inventory and management; defence and transport systems with deep object models; and maintaining existing Versant installations.

Is ObjectDatabase++ or Actian NoSQL (Versant) more popular?

Actian NoSQL (Versant) ranks #445 on the WhichDB Score (3.1/100) and ObjectDatabase++ ranks #784 (0.0/100). Popularity is not fit: check the requirements that matter for your project.

Are ObjectDatabase++ and Actian NoSQL (Versant) open source?

No. ObjectDatabase++ is proprietary, closed-source software. License: Commercial; free renewable developer license. No. Actian NoSQL (Versant) is proprietary, closed-source software. License: Commercial (Actian).