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LMDB vs. Neo4J Community

LMDB Neo4J Community + Add column
Preference (57% global votes) (33% global votes)
Website symas.​com/​mdb neo4j.​org
Database model
Data storage
Embeddable Yes Yes
Query language
Data types
Conditional entry updates No ?
Map and reduce No No
Unicode No Yes
TTL for entries No ?
Compression No Yes
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No ?
Revision control No ?
Locking model ?
Secondary Indexes No Yes
Composite keys No ?
Full text search No ?
Geospatial Indexes No ?
Graph support No Yes
Graph type ?
Horizontal scalable No No
Replication No Yes
Replication mode
Sharding No No
Value size max. 4 GB 443 PB
System requirements
Operating system
Native driver
Memory minimum 64 kB 256 GB
Programming language
Description Memory-Mapped, Copy-on-Write ?
Brand ?
Multi-user system 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 ?
Creation Date 2009 ?
Community Driven Good ?
API Basic ?
Online backup Yes No
Function Based Index No ?
Implementation flexibility (50% global votes) (0% global votes)
Download gitorious.​org/​mdb ?
Backup functionality Good ?
Query Cache No ?
Ease of use ★★★★☆ ?
In-Place Update Yes ?
Free for commercial use Yes Yes
Sorts Yes ?
Read preferences No ?
Open Source Yes ?
Maximum size 9.2 EB ?
Perfomance ★★★★★ ?
JSON Yes Yes
Batch Loading Yes Yes
Corruption Resistant Yes ?
RESTful ? Yes
Triggers ? Yes
Geospatial ? Yes
CLI` ? Yes
; drop table users; ? Yes
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LMDB Neo4J Community
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