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Oracle TimesTen vs Volt Active Data (VoltDB)

Oracle TimesTen: Oracle's in-memory relational database: microsecond SQL, PL/SQL, and a cache tier for Oracle Database. Volt Active Data (VoltDB): In-memory, partitioned SQL engine running Java stored procedures serially for millisecond decisioning.

key differences

  • Only Oracle TimesTen has compression.
  • Only Volt Active Data (VoltDB) has geospatial, json, change data capture, ttl / expiry, pub/sub.
  • Oracle TimesTen can run embedded in your application process.

choose oracle-timesten for

  • +Telecom online charging and policy control
  • +Trading and market-data applications
  • +Real-time fraud and authorisation checks
  • +In-memory cache tier in front of Oracle Database

best at · OLTP, Cache, Real-time analytics

choose volt-active-data for

  • +Telecom online charging and policy control
  • +Real-time fraud and risk decisions
  • +Ad bidding and personalization at high TPS
  • +Gaming leaderboards and in-game economies

best at · OLTP, Real-time analytics, Streaming

Oracle TimesTenOracle's in-memory relational database: microsecond SQL, PL/SQL, and a cache tier for Oracle Database.
Volt Active Data (VoltDB)In-memory, partitioned SQL engine running Java stored procedures serially for millisecond decisioning.
overview
Primary model
Relational
Relational
Also supports
–
Document, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
Oracle Corporation
Volt Active Data, Inc.
First release
1998
2010
Latest version
26.1.1 (Apr 2026)
16.0.0 (Sep 30, 2026)
License
ProprietaryProprietary commercial license
ProprietaryProprietary (commercial)
Free tier
—
—
popularity
WhichDB Score
9.5
20.7
Rank
#310
#154
GitHub stars
–
–
Stack Overflow questions
76
153
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Medium (≤ 10 TB)
Horizontal scaling
Native
Native
Multi-region
Read replicas
Active active
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
In memory, Distributed, Primary replica, Embedded
Distributed, In memory, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
✓
—
Edge
—
—
Clouds
–
AWS, 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, PL/SQL
SQL, Java (stored procedures)
Client languages
C, C++, Java, Python, JavaScript
Java, Python, C++, Go, C#, JavaScript
Best for
OLTP, Cache, Real-time analytics, Tick data
OLTP, Real-time analytics, Streaming, Tick data
Add more to this comparisonNot sure either fits? Try smart match

Oracle TimesTen vs Volt Active Data (VoltDB): FAQ

What is the difference between Oracle TimesTen and Volt Active Data (VoltDB)?

Oracle TimesTen: Oracle's in-memory relational database: microsecond SQL, PL/SQL, and a cache tier for Oracle Database. Volt Active Data (VoltDB): In-memory, partitioned SQL engine running Java stored procedures serially for millisecond decisioning. Only Oracle TimesTen has compression. Only Volt Active Data (VoltDB) has geospatial, json, change data capture, ttl / expiry, pub/sub. Oracle TimesTen can run embedded in your application process.

When should I choose Oracle TimesTen over Volt Active Data (VoltDB)?

Choose Oracle TimesTen for telecom online charging and policy control; trading and market-data applications; and real-time fraud and authorisation checks. Choose Volt Active Data (VoltDB) for telecom online charging and policy control; real-time fraud and risk decisions; and ad bidding and personalization at high TPS.

Is Oracle TimesTen or Volt Active Data (VoltDB) more popular?

Volt Active Data (VoltDB) ranks #154 on the WhichDB Score (20.7/100) and Oracle TimesTen ranks #310 (9.5/100). Popularity is not fit: check the requirements that matter for your project.

Are Oracle TimesTen and Volt Active Data (VoltDB) open source?

No. Oracle TimesTen is proprietary, closed-source software. No. Volt Active Data (VoltDB) is proprietary, closed-source software.