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MariaDB vs. LMDB

MariaDB LMDB + Add column
Preference (57% global votes) (57% global votes)
Website https:/​/​mariadb.​org/​ symas.​com/​mdb
Database model
Data storage
Embeddable Yes Yes
Query language
Data types
Conditional entry updates Yes No
Map and reduce No No
Unicode Yes No
TTL for entries No No
Compression Yes No
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity Yes No
Revision control ? No
Locking model
Secondary Indexes Yes No
Composite keys Yes No
Full text search Yes No
Geospatial Indexes Yes No
Graph support Yes No
Horizontal scalable Yes No
Replication Yes No
Replication mode
Sharding No No
Shared nothing architecture No ?
Value size max. ? 4 GB
System requirements
Operating system
Native driver
Memory minimum 11 MB 64 kB
Programming language
Description Relational Database System Memory-Mapped, Copy-on-Write
Multi-user system Yes Yes
Extension/Plug-in Yes ?
Multilingual content Yes ?
Price rating ★★★★★ ★★★★★
Multiple projects Yes ?
Standard compliance Yes ?
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date 2009 September 2011
Documentation level ★★★★☆ ★★★★★
RESTful No ?
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics No Yes
Creation Date 2009 2009
Community Driven Good Good
Web interface Yes ?
Data encryption Yes ?
Cloud platform support ?
Online backup Yes Yes
Partial Index Yes ?
Function Based Index Yes No
Key length max 255 ?
Log Yes ?
Implementation flexibility (50% global votes) (50% global votes)
Download https:/​/​downloads.​mariadb.​org/​ gitorious.​org/​mdb
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★★ ★★★★☆
In-Place Update No Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns Yes ?
Easy of Use Yes ?
Open Source Yes Yes
Triggers Yes ?
Perfomance ★★★★☆ ★★★★★
Geospatial Yes ?
JSON Yes Yes
Flexible Table(Schema) No ?
Stored Procedure Yes ?
24/7 support Yes ?
Free edition Yes ?
SQL Queries Yes ?
Does your mom understand it No ?
Monitoring UI Yes ?
CLI` Yes ?
Lines of code ? 7 k
API ? Basic
Read preferences ? No
Maximum size ? 9.2 EB
Batch Loading ? Yes
Corruption Resistant ? Yes
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