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DBMS > OpenMLDB vs. RavenDB vs. Realm vs. RRDtool vs. SWC-DB

System Properties Comparison OpenMLDB vs. RavenDB vs. Realm vs. RRDtool vs. SWC-DB

Editorial information provided by DB-Engines
NameOpenMLDB  Xexclude from comparisonRavenDB  Xexclude from comparisonRealm  Xexclude from comparisonRRDtool  Xexclude from comparisonSWC-DB infoSuper Wide Column Database  Xexclude from comparison
DescriptionAn open-source machine learning database that provides a feature platform for training and inferenceOpen Source Operational and Transactional Enterprise NoSQL Document DatabaseA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataIndustry standard data logging and graphing tool for time series data. RRD is an acronym for round-robin database. infoThe data is stored in a circular buffer, thus the system storage footprint remains constant over time.A high performance, scalable Wide Column DBMS
Primary database modelTime Series DBMSDocument storeDocument storeTime Series DBMSWide column store
Secondary database modelsRelational DBMSGraph DBMS
Spatial DBMS
Time Series DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.11
Rank#339  Overall
#30  Time Series DBMS
Score2.68
Rank#102  Overall
#19  Document stores
Score7.18
Rank#52  Overall
#8  Document stores
Score1.70
Rank#136  Overall
#11  Time Series DBMS
Score0.01
Rank#378  Overall
#13  Wide column stores
Websiteopenmldb.airavendb.netrealm.iooss.oetiker.ch/­rrdtoolgithub.com/­kashirin-alex/­swc-db
www.swcdb.org
Technical documentationopenmldb.ai/­docs/­zh/­mainravendb.net/­docsrealm.io/­docsoss.oetiker.ch/­rrdtool/­doc
Developer4 Paradigm Inc.Hibernating RhinosRealm, acquired by MongoDB in May 2019Tobias OetikerAlex Kashirin
Initial release20202010201419992020
Current release2024-2 February 20245.4, July 20221.8.0, 20220.5, April 2021
License infoCommercial or Open SourceOpen SourceOpen Source infoAGPL version 3, commercial license availableOpen SourceOpen Source infoGPL V2 and FLOSSOpen Source infoGPL V3
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++, Java, ScalaC#C infoImplementations in Java (e.g. RRD4J) and C# availableC++
Server operating systemsLinuxLinux
macOS
Raspberry Pi
Windows
Android
Backend: server-less
iOS
Windows
HP-UX
Linux
Linux
Data schemeFixed schemaschema-freeyesyesschema-free
Typing infopredefined data types such as float or dateyesnoyesNumeric data only
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 infoExporting into and restoring from XML files possibleno
Secondary indexesyesyesyesno
SQL infoSupport of SQLyesSQL-like query language (RQL)nonoSQL-like query language
APIs and other access methodsJDBC
SQLAlchemy
.NET Client API
F# Client API
Go Client API
Java Client API
NodeJS Client API
PHP Client API
Python Client API
RESTful HTTP API
in-process shared library
Pipes
Proprietary protocol
Thrift
Supported programming languagesC++
Go
Java
Python
Scala
.Net
C#
F#
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Java infowith Android only
Objective-C
React Native
Swift
C infowith librrd library
C# infowith a different implementation of RRDTool
Java infowith a different implementation of RRDTool
JavaScript (Node.js) infowith a different implementation of RRDTool
Lua
Perl
PHP infowith a wrapper library
Python
Ruby
C++
Server-side scripts infoStored proceduresnoyesno inforuns within the applications so server-side scripts are unnecessarynono
Triggersnoyesyes infoChange Listenersnono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardingnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationMulti-source replicationnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyDefault ACID transactions on the local node (eventually consistent across the cluster). Atomic operations with cluster-wide ACID transactions. Eventual consistency for indexes and full-text search indexes.Immediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID, Cluster-wide transaction availableACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoby using the rrdcached daemonyes
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.yesyes infoIn-Memory realmyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardAuthorization levels configured per client per databaseyesno

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More resources
OpenMLDBRavenDBRealmRRDtoolSWC-DB infoSuper Wide Column Database
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