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DBMS > Drizzle vs. OpenMLDB vs. RDFox vs. RethinkDB vs. SwayDB

System Properties Comparison Drizzle vs. OpenMLDB vs. RDFox vs. RethinkDB vs. SwayDB

Editorial information provided by DB-Engines
NameDrizzle  Xexclude from comparisonOpenMLDB  Xexclude from comparisonRDFox  Xexclude from comparisonRethinkDB  Xexclude from comparisonSwayDB  Xexclude from comparison
Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
DescriptionMySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.An open-source machine learning database that provides a feature platform for training and inferenceHigh performance knowledge graph and semantic reasoning engineDBMS for the Web with a mechanism to push updated query results to applications in realtime.An embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storage
Primary database modelRelational DBMSTime Series DBMSGraph DBMS
RDF store
Document storeKey-value store
Secondary database modelsRelational DBMSRelational DBMSSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Score2.66
Rank#107  Overall
#20  Document stores
Score0.04
Rank#387  Overall
#61  Key-value stores
Websiteopenmldb.aiwww.oxfordsemantic.techrethinkdb.comswaydb.simer.au
Technical documentationopenmldb.ai/­docs/­zh/­maindocs.oxfordsemantic.techrethinkdb.com/­docs
DeveloperDrizzle project, originally started by Brian Aker4 Paradigm Inc.Oxford Semantic TechnologiesThe Linux Foundation infosince July 2017Simer Plaha
Initial release20082020201720092018
Current release7.2.4, September 20122024-2 February 20246.0, Septermber 20222.4.1, August 2020
License infoCommercial or Open SourceOpen Source infoGNU GPLOpen SourcecommercialOpen Source infoApache Version 2Open Source infoGNU Affero GPL V3.0
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++, Java, ScalaC++C++Scala
Server operating systemsFreeBSD
Linux
OS X
LinuxLinux
macOS
Windows
Linux
OS X
Windows
Data schemeyesFixed schemayes infoRDF schemasschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesyes infostring, binary, float, bool, date, geometryno
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.nonono
Secondary indexesyesyesyesno
SQL infoSupport of SQLyes infowith proprietary extensionsyesnonono
APIs and other access methodsJDBCJDBC
SQLAlchemy
RESTful HTTP API
SPARQL 1.1
Supported programming languagesC
C++
Java
PHP
C++
Go
Java
Python
Scala
C
Java
C infocommunity-supported driver
C# infocommunity-supported driver
C++ infocommunity-supported driver
Clojure infocommunity-supported driver
Dart infocommunity-supported driver
Erlang infocommunity-supported driver
Go infocommunity-supported driver
Haskell infocommunity-supported driver
Java infoofficial driver
JavaScript (Node.js) infoofficial driver
Lisp infocommunity-supported driver
Lua infocommunity-supported driver
Objective-C infocommunity-supported driver
Perl infocommunity-supported driver
PHP infocommunity-supported driver
Python infoofficial driver
Ruby infoofficial driver
Scala infocommunity-supported driver
Java
Kotlin
Scala
Server-side scripts infoStored proceduresnonono
Triggersno infohooks for callbacks inside the server can be used.noClient-side triggers through changefeedsno
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioningSharding inforange basednone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
Source-replica replicationreplication via a shared file systemSource-replica replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDAtomic single-document operationsAtomic execution of operations
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoMVCC basedyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesnoyes
User concepts infoAccess controlPluggable authentication mechanisms infoe.g. LDAP, HTTPfine grained access rights according to SQL-standardRoles, resources, and access typesyes infousers and table-level permissionsno

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More resources
DrizzleOpenMLDBRDFoxRethinkDBSwayDB
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