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VoltDB vs. eXtremeDB

VoltDB eXtremeDB + Add column
Category
Preference 45% votes 55% votes
Website www.​voltdb.​com www.​mcobject.​com
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce Yes No
Unicode Yes Yes
TTL for entries No Yes
Compression No Yes
Integrity
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity Yes No
Revision control Yes Yes
Locking model
Indexing
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search No Yes
Geospatial Indexes Yes Yes
Graph support No Conditional
Distribution
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture Yes Yes
Restrictions
Value size max. ? 100 TB
System requirements
Operating system
Native driver
Memory minimum 4 GB 200 kB
Architecture
Programming language
More
Description VoltDB is an ACID-compliant OLTP database that can process millions of transactions per second on commodity servers that are loosely connected over a fast network. It is a highly scalable alternative to legacy SQL databases such as Oracle and MySQL. VoltDB is accessed using SQL, the industry standard data language, and is also accessible using popular key-value and document-style interfaces. Memory based database
Multi-user system Yes Yes
Bluetooth No ?
Accelerometer sensor No ?
Database
Multilingual content Yes Yes
Price rating ★★★★☆ ★★★☆☆
Standard compliance Yes Yes
Software distribution
Object-Relational Mapping (ORM) Yes No
Documentation level ★★★★★ ★★★★☆
RESTful Yes No
Distributed Counter No ?
Free to use Yes No
Active Yes Yes
Database Connection Pooling Yes Yes
Real time analytics Yes Yes
Creation Date 2012 ?
Community Driven Basic No
Web interface Yes Yes
API Good ?
2 Letter Country Code US US
Cloud platform support
Online backup Yes Yes
Admin Generator Yes ?
Partial Index Yes Yes
Function Based Index Yes ?
Key length max 1 000 000 ?
Geographic Replication Yes ?
Log Yes Yes
Implementation flexibility 75% votes 25% votes
Download voltdb.​com/​download/​software ?
Backup functionality Excellent Excellent
Query Cache Yes Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes No
Sorts Yes Yes
Tuneable write concerns Yes ?
Event Driven Architecture Yes ?
Open Source Yes No
Op/s 15 000 000 ?
Maven support Yes ?
Triggers No Yes
Perfomance ★★★★★ ★★★★★
Materialized Views Yes ?
Pipeline Aggregation Yes ?
Spring Data Support Yes ?
Predictive Analytics Yes No
JSON Yes Yes
Flexible Table(Schema) Yes Yes
Geo-distributed Yes ?
Clustering over WAN No ?
Stored Procedure Yes No
Second Level Caching No ?
Concurrency Yes Yes
Auto-Sharding Yes Yes
Попаболь Yes ?
Contributors 40 ?
Aggregators Yes ?
Near cache No ?
Continuous query Yes ?
24/7 support Yes ?
Free edition Yes ?
Distributed code Deployment Yes ?
Dynamic code deployment Yes ?
DB Delta Server No ?
Rolling Upgrade Yes ?
Kafka Integration Yes ?
Storm Integration Yes ?
Offheap Memory Yes ?
CEP Streaming Yes ?
SQL Queries Yes ?
Atomic Persistence Yes ?
User and Group role based security model Yes ?
Minimum Java version 1.7 ?
Average Latency (milliseconds)) 1 ?
Multi-statement Transactions Yes ?
Columner No ?
Monitoring and Management ?
Brand ?
WYSIWYG-Editor ? No
Release Date ? 12ᵗʰ September 2001
3D Screen ? No
Data encryption ? Yes
Read preferences ? Yes
XInclude Support ? Yes
Cross Domain Testing ? Yes
Geospatial ? Yes
Text Analytics ? Yes
Server Side Java Script ? No
OData ? Yes
HTML5 Charts ? Yes
Decision Tables ? Yes
Monitoring UI ? Yes
Online backup (no locking) ? Yes
CLI` ? Yes
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VoltDB eXtremeDB
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