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LMDB vs. mongodb

LMDB mongodb + Add column
LMDB Terracotta (Software)
Category
Preference (57% global votes) (30% global votes)
Website symas.​com/​mdb www.​mongodb.​org
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 Conditional
Referential integrity No No
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 2 PB
System requirements
Operating system
Native driver
Memory minimum 64 kB ?
Architecture
Programming language
More
Description Memory-Mapped, Copy-on-Write In-Memory data management
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 ?
Community Driven Good ?
API Basic Good
Online backup Yes ?
Function Based Index No ?
Implementation flexibility (50% global votes) (0% global votes)
Download gitorious.​org/​mdb ?
Backup functionality Good Good
Query Cache No Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes ?
Read preferences No Yes
Open Source Yes ?
Maximum size 9.2 EB ?
Perfomance ★★★★★ ★★★★☆
JSON Yes ?
Batch Loading Yes ?
Corruption Resistant Yes ?
RESTful ? No
Database Connection Pooling ? No
WSDL ? Yes
Key length max ? 0
Log ? Yes
Flexible Table(Schema) ? Yes
Free edition ? Yes
will make you reach ? Yes
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LMDB mongodb
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