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DBMS > CockroachDB vs. HarperDB vs. RDF4J

System Properties Comparison CockroachDB vs. HarperDB vs. RDF4J

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonHarperDB  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparison
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.A distributed database focused on speed and ease of use. It has an intuitive REST API, and supports NoSQL and SQL including joins. HarperDB leverages standard interfaces, and users can be up and running in minutes.RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.
Primary database modelRelational DBMSDocument storeRDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score6.67
Rank#58  Overall
#32  Relational DBMS
Score0.78
Rank#197  Overall
#30  Document stores
Score0.60
Rank#221  Overall
#9  RDF stores
Websitewww.cockroachlabs.comharperdb.iordf4j.org
Technical documentationwww.cockroachlabs.com/­docsharperdb.io/­developers/­documentation/­overviewrdf4j.org/­documentation
DeveloperCockroach LabsHarperDBSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.
Initial release201520172004
Current release20.2, November 20203.0, May 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availablecommercial infofree community edition availableOpen Source infoEclipse Distribution License (EDL), v1.0.
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.
CockroachCloud: Get your applications to market faster with a fully managed CockroachDB instance. Leave the daily maintenance, security, and operations of your database to us, and spend more time building apps and running your business.HarperDB Cloud: Get To Market Faster, For Less Money Using Our Built-in API.
Implementation languageGoNode.jsJava
Server operating systemsLinux
macOS
Windows
Linux
OS X
Linux
OS X
Unix
Windows
Data schemedynamic schemadynamic schemayes infoRDF Schemas
Typing infopredefined data types such as float or dateyesyes infoJSON data typesyes
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 indexesyesyesyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLSQL-like data manipulation statementsno
APIs and other access methodsJDBCJDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Java API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
.Net
C
C#
C++
ColdFusion
D
Dart
Delphi
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
MatLab
Objective C
Perl
PHP
PowerShell
Prolog
Python
R
Ruby
Rust
Scala
Swift
Java
PHP
Python
Server-side scripts infoStored proceduresnonoyes
Triggersnonoyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTA table resides as a whole on one (or more) nodes in a clusternone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTyes infothe nodes on which a table resides can be definednone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDAtomic execution of specific operationsACID infoIsolation support depends on the API used
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes, using LMDByes infoin-memory storage is supported as well
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlRole-based access controlAccess rights for users and rolesno
More information provided by the system vendor
CockroachDBHarperDBRDF4J infoformerly known as Sesame
Specific characteristicsCockroachDB is a cloud-native, distributed SQL database architected for modern applications....
» more
HarperDB is the first distributed database with hybrid SQL & NoSQL functionality...
» more
Competitive advantages- EFFORTLESS SCALE: Scale your applications, not operational complexity. CockroachDB...
» more
By combining the functionality of the best SQL, NoSQL, and NewSQL products on the...
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Typical application scenariosSystem of record (financial ledger, inventory management, transaction record), identity...
» more
Use cases where HarperDB is a better fit than other solutions include: Rapid app...
» more
Key customersComcast, SpaceX, eBay, DoorDash, Mythical Games, Norfolk Southern, LUSH, Bose, Kindred,...
» more
A few highlighted customers include: US Army, US Airforce, Chelan PUD, TATA, & Lumen....
» more
Market metrics8K+ long-running clusters 900+ CockroachDB Enterprise clusters 2K+ CockroachCloud...
» more
6,800 + npm downloads 1,600 + on Docker Hub 2,600 + cloud & local signups
» more
Licensing and pricing models- Apache 2.0 for core features released up to and including the 19.1 release - Time-limited...
» more
HarperDB follows a freemium/premium model . A database is only as powerful as it...
» more

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More resources
CockroachDBHarperDBRDF4J infoformerly known as Sesame
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