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LMDB vs. VoltDB

LMDB VoltDB + Add column
Category
Preference (57% global votes) (48% global votes)
Website symas.​com/​mdb www.​voltdb.​com
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Data types
Conditional entry updates No Yes
Map and reduce No Yes
Unicode No Yes
TTL for entries No No
Compression No No
Integrity
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No Yes
Revision control No Yes
Locking model
Indexing
Secondary Indexes No Yes
Composite keys No Yes
Full text search No No
Geospatial Indexes No Yes
Graph support No No
Distribution
Horizontal scalable No Yes
Replication No Yes
Replication mode
Sharding No Yes
Shared nothing architecture ? Yes
Restrictions
Value size max. 4 GB ?
System requirements
Operating system
Native driver
Memory minimum 64 kB 4 GB
Architecture
Programming language
More
Description Memory-Mapped, Copy-on-Write 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.
Brand ?
Multi-user system Yes Yes
Database
Price rating ★★★★★ ★★★★☆
Software distribution
Release Date September 2011 ?
Documentation level ★★★★★ ★★★★★
Lines of code 7 k ?
Free to use Yes Yes
Active Yes Yes
Real time analytics Yes Yes
Creation Date 2009 2012
Community Driven Good Basic
API Basic Good
Online backup Yes Yes
Function Based Index No Yes
Implementation flexibility (50% global votes) (100% global votes)
Download gitorious.​org/​mdb voltdb.​com/​download/​software
Backup functionality Good Excellent
Query Cache No Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Read preferences No ?
Open Source Yes Yes
Maximum size 9.2 EB ?
Perfomance ★★★★★ ★★★★★
JSON Yes Yes
Batch Loading Yes ?
Corruption Resistant Yes ?
Bluetooth ? No
Accelerometer sensor ? No
Multilingual content ? Yes
Standard compliance ? Yes
Object-Relational Mapping (ORM) ? Yes
RESTful ? Yes
Distributed Counter ? No
Database Connection Pooling ? Yes
Web interface ? Yes
2 Letter Country Code ? US
Cloud platform support ?
Admin Generator ? Yes
Partial Index ? Yes
Key length max ? 1 000 000
Geographic Replication ? Yes
Log ? Yes
Tuneable write concerns ? Yes
Event Driven Architecture ? Yes
Op/s ? 15 000 000
Maven support ? Yes
Triggers ? No
Materialized Views ? Yes
Pipeline Aggregation ? Yes
Spring Data Support ? Yes
Predictive Analytics ? Yes
Flexible Table(Schema) ? Yes
Geo-distributed ? Yes
Clustering over WAN ? No
Stored Procedure ? Yes
Second Level Caching ? No
Concurrency ? Yes
Auto-Sharding ? 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 ?
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LMDB VoltDB
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