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DBMS > chDB vs. RDFox vs. Realm

System Properties Comparison chDB vs. RDFox vs. Realm

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonRDFox  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseHigh performance knowledge graph and semantic reasoning engineA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelRelational DBMSGraph DBMS
RDF store
Document store
Secondary database modelsTime Series DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.08
Rank#345  Overall
#149  Relational DBMS
Score0.24
Rank#298  Overall
#25  Graph DBMS
#13  RDF stores
Score7.12
Rank#48  Overall
#8  Document stores
Websitegithub.com/­chdb-io/­chdbwww.oxfordsemantic.techrealm.io
Technical documentationdoc.chdb.iodocs.oxfordsemantic.techrealm.io/­docs
DeveloperOxford Semantic TechnologiesRealm, acquired by MongoDB in May 2019
Initial release202320172014
Current release6.0, Septermber 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialOpen Source
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 languageC++
Server operating systemsserver-lessLinux
macOS
Windows
Android
Backend: server-less
iOS
Windows
Data schemeyes infoRDF schemasyes
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.no
Secondary indexesyes
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)nono
APIs and other access methodsRESTful HTTP API
SPARQL 1.1
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
C
Java
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresno inforuns within the applications so server-side scripts are unnecessary
Triggersyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesreplication via a shared file systemnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
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.yesyes infoIn-Memory realm
User concepts infoAccess controlRoles, resources, and access typesyes

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chDBRDFoxRealm
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