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LMDB vs. Raven DB

LMDB Raven DB + Add column
Category
Preference (57% global votes) (45% global votes)
Website symas.​com/​mdb ravendb.​net
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 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 No Yes
Revision control No Yes
Locking model
Indexing
Secondary Indexes No Yes
Composite keys No Yes
Full text search No Yes
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 2 GB
System requirements
Operating system
Native driver
Memory minimum 64 kB 512 MB
Architecture
Programming language
More
Description Memory-Mapped, Copy-on-Write .NET Document Database
Brand
Multi-user system Yes Yes
Database
Price rating ★★★★★ ★★★★☆
Software distribution
Release Date September 2011 June 2016
Documentation level ★★★★★ ★★★★☆
Lines of code 7 k ?
Free to use Yes Yes
Active Yes Yes
Real time analytics Yes Yes
Creation Date 2009 ?
Community Driven Good Basic
API Basic ?
Online backup Yes Yes
Function Based Index No Yes
Implementation flexibility (50% global votes) (100% global votes)
Download gitorious.​org/​mdb ravendb.​net/​download
Backup functionality Good Good
Query Cache No Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Read preferences No Yes
Open Source Yes Yes
Maximum size 9.2 EB ?
Perfomance ★★★★★ ★★★★☆
JSON Yes Yes
Batch Loading Yes ?
Corruption Resistant Yes ?
Extension/Plug-in ? Yes
Multilingual content ? Yes
WYSIWYG-Editor ? Yes
Standard compliance ? No
Object-Relational Mapping (ORM) ? Yes
RESTful ? Yes
Database Connection Pooling ? Yes
WSDL ? No
Web interface ? Yes
Data encryption ? Yes
Cloud platform support ?
Key length max ? 1 027
Log ? Yes
XUpdate Support ? Yes
Triggers ? Yes
Cloud-enabled ? Yes
Geospatial ? Yes
Server Side Java Script ? Yes
Flexible Table(Schema) ? Yes
Geo-distributed ? Yes
Ajax ? Yes
Max rows in query result ? 1 024
ORM Join Support ? Yes
Clustering over WAN ? Yes
Fully Distributed ? Yes
Concurrency ? Yes
Auto-Sharding ? Yes
In business since ? 2016
Free edition ? Yes
SQL Queries ? Yes
Monitoring UI ? Yes
CLI` ? Yes
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LMDB Raven DB
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