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DBMS > Lovefield vs. OpenQM vs. OrientDB

System Properties Comparison Lovefield vs. OpenQM vs. OrientDB

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Editorial information provided by DB-Engines
NameLovefield  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOrientDB  Xexclude from comparison
DescriptionEmbeddable relational database for web apps written in pure JavaScriptQpenQM is a high-performance, self-tuning, multi-value DBMSMulti-model DBMS (Document, Graph, Key/Value)
Primary database modelRelational DBMSMultivalue DBMSDocument store
Graph DBMS
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.38
Rank#279  Overall
#129  Relational DBMS
Score0.41
Rank#272  Overall
#10  Multivalue DBMS
Score4.98
Rank#81  Overall
#15  Document stores
#5  Graph DBMS
#13  Key-value stores
Websitegoogle.github.io/­lovefieldwww.openqm.comorientdb.org
Technical documentationgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdwww.openqm.com/­support/­documentationwww.orientdb.com/­docs/­last/­index.html
DeveloperGoogleMartin PhillipsOrientDB LTD; CallidusCloud; SAP
Initial release201419932010
Current release2.1.12, February 20173.4-123.1.9, February 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGPLv2, extended commercial license availableOpen Source infoApache version 2
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, SafariAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
All OS with a Java JDK (>= JDK 6)
Data schemeyesyes infowith some exceptionsschema-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 dateyesyes
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.noyesno
Secondary indexesyesyesyes
SQL infoSupport of SQLSQL-like query language infovia JavaScript builder patternnoSQL-like query language, no joins
APIs and other access methodsTinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
Supported programming languagesJavaScript.Net
Basic
C
Java
Objective C
PHP
Python
.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
Server-side scripts infoStored proceduresnoyesJava, Javascript
TriggersUsing read-only observersyesHooks
Partitioning methods infoMethods for storing different data on different nodesnoneyesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyesMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infocould be achieved with distributed queries
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesnoyes inforelationship in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infousing MemoryDB
User concepts infoAccess controlnoAccess rights can be defined down to the item levelAccess rights for users and roles; record level security configurable

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More resources
LovefieldOpenQM infoalso called QMOrientDB
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