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DBMS > LMDB vs. OrientDB

System Properties Comparison LMDB vs. OrientDB

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Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonOrientDB  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database libraryMulti-model DBMS (Document, Graph, Key/Value)
Primary database modelKey-value storeDocument store
Graph DBMS
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.25
Rank#115  Overall
#21  Key-value stores
Score4.56
Rank#80  Overall
#13  Document stores
#5  Graph DBMS
#12  Key-value stores
Websitewww.symas.com/­symas-embedded-database-lmdborientdb.org
Technical documentationwww.orientdb.com/­docs/­last/­index.html
DeveloperSymasOrientDB LTD; CallidusCloud; SAP
Initial release20112010
Current release0.9.29, March 20213.1.9, February 2021
License infoCommercial or Open SourceOpen SourceOpen Source infoApache version 2
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJava
Server operating systemsAll OS with a Java JDK (>= JDK 6)
Data schemeschema-freeschema-free infoSchema can be enforced for whole record ("schema-full") or for some fields only ("schema-hybrid")
Typing infopredefined data types such as float or dateyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono
Secondary indexesnoyes
SQL infoSupport of SQLnoSQL-like query language, no joins
APIs and other access methodsTinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
Supported programming languagesC.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
Server-side scripts infoStored proceduresnoJava, Javascript
TriggersnoHooks
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infocould be achieved with distributed queries
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynoyes inforelationship in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlnoAccess rights for users and roles; record level security configurable

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LMDBOrientDB
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