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VoltDB vs. kdb+

VoltDB kdb+ + Add column
Category
Preference (48% global votes) (75% global votes)
Website www.​voltdb.​com kx.​com
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Data types ?
Conditional entry updates Yes Yes
Map and reduce Yes Yes
Unicode Yes Yes
TTL for entries No Conditional
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 Yes
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 ?
Distribution
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture Yes Yes
Restrictions
Value size max. ? 10 TB
System requirements
Operating system
Native driver
Memory minimum 4 GB 100 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. In memory, high performance columnar
Multi-user system Yes Yes
Bluetooth No ?
Accelerometer sensor No ?
Database
Multilingual content Yes ?
Price rating ★★★★☆ ★★★★★
Standard compliance Yes Yes
Software distribution
Object-Relational Mapping (ORM) Yes Yes
Documentation level ★★★★★ ★★★★☆
RESTful Yes Yes
Distributed Counter No Yes
Free to use Yes Conditional
Active Yes Yes
Database Connection Pooling Yes Yes
Real time analytics Yes Yes
Creation Date 2012 1993
Community Driven Basic Good
Web interface Yes Yes
API Good Good
2 Letter Country Code US ?
Cloud platform support
Online backup Yes Yes
Admin Generator Yes ?
Partial Index Yes ?
Function Based Index Yes Yes
Key length max 1 000 000 ?
Geographic Replication Yes Yes
Log Yes Yes
Implementation flexibility (100% global votes) (100% global votes)
Download voltdb.​com/​download/​software https:/​/​kx.​com/​software-download.​php
Backup functionality Excellent Good
Query Cache Yes Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns Yes Yes
Event Driven Architecture Yes Yes
Open Source Yes No
Op/s 15 000 000 100 000
Maven support Yes Yes
Triggers No Yes
Perfomance ★★★★★ ★★★★★
Materialized Views Yes ?
Pipeline Aggregation Yes Yes
Spring Data Support Yes Yes
Predictive Analytics Yes Yes
JSON Yes Yes
Flexible Table(Schema) Yes No
Geo-distributed Yes Yes
Clustering over WAN No Yes
Stored Procedure Yes Yes
Second Level Caching No Yes
Concurrency Yes Yes
Auto-Sharding Yes Yes
Попаболь Yes ?
Contributors 40 ?
Aggregators Yes Yes
Near cache No Yes
Continuous query Yes Yes
24/7 support Yes Yes
Free edition Yes Yes
Distributed code Deployment Yes Yes
Dynamic code deployment Yes Yes
DB Delta Server No Yes
Rolling Upgrade Yes Yes
Kafka Integration Yes No
Storm Integration Yes No
Offheap Memory Yes Yes
CEP Streaming Yes Yes
SQL Queries Yes 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 ?
Extension/Plug-in ? Yes
Release Date ? 1993
Widgets Dashboard ? Good
Color ?
Level of access authorization ?
Capped Collections ? Yes
Read preferences ? Yes
XInclude Support ? No
XQuery Support ? No
Global Assembly Cache ? Yes
Cloud-enabled ? Yes
Licenses model ?
Geospatial ? Yes
Text Analytics ? Yes
Server Side Java Script ? Yes
Batch Loading ? Yes
Administrator responsive? ? Yes
Re-Reduce ? Yes
Fully Distributed ? Yes
Native Adsense Integration ? No
Delta read ? Yes
Delta Update ? Yes
HTTP Session replication ? Yes
LDAP Integration ? Yes
In business since ? 1993
Number of systems in production ? 80 000
Dynamic index ? Yes
Data Grid interceptors ? Yes
Replication interceptors ? Yes
Drools Integration ? No
In-Memory File System ? Yes
memcached protocol ? Yes
Does your mom understand it ? No
Monitoring UI ? Yes
CLI` ? Yes
Web Page Caching ? Yes
Web Page Fragment Caching ? Yes
Abstracts complexity of UI Components ? Yes
Hadoop Integration ? Yes
Apache Spark Integration ? Yes
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VoltDB kdb+
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