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DBMS > CockroachDB vs. Dgraph vs. HarperDB

System Properties Comparison CockroachDB vs. Dgraph vs. HarperDB

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonDgraph  Xexclude from comparisonHarperDB  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.Distributed and scalable native Graph DBMSA 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.
Primary database modelRelational DBMSGraph DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.85
Rank#57  Overall
#33  Relational DBMS
Score1.54
Rank#143  Overall
#11  Graph DBMS
Score0.52
Rank#238  Overall
#37  Document stores
Websitewww.cockroachlabs.comdgraph.ioharperdb.io
Technical documentationwww.cockroachlabs.com/­docsdgraph.io/­docsharperdb.io/­developers/­documentation/­overview
DeveloperCockroach LabsDgraph Labs, Inc.HarperDB
Initial release201520162017
Current release21.1.2, June 20213.1, August 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availableOpen Source infoApache 2.0commercial infofree community edition available
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.
CockroachDB: A cloud-native, distributed SQL database designed for speed, scale, and survival. Get started for free today with a fully-managed CockroachDB cluster -- leave operations behind and get your app to market faster.
Implementation languageGoGoNode.js
Server operating systemsLinux
macOS
Windows
Linux
OS X
Windows
Linux
OS X
Data schemedynamic schemaschema-freedynamic schema
Typing infopredefined data types such as float or dateyesyesyes infoJSON data types
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 indexesyesyesyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLnoSQL-like data manipulation statements
APIs and other access methodsJDBCGraphQL query language
gRPC (using protocol buffers) API
HTTP API
JDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.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
Server-side scripts infoStored proceduresnonoCustom Functions infosince release 3.1
Triggersnonono
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 RAFTyesA table resides as a whole on one (or more) nodes in a cluster
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTSynchronous replication via Raftyes infothe nodes on which a table resides can be defined
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDAtomic execution of specific operations
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes, using LMDB
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 controlno infoPlanned for future releasesAccess rights for users and roles
More information provided by the system vendor
CockroachDBDgraphHarperDB
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...
» more
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, DoorDash, Mythical Games, Norfolk Southern, LUSH, Bose, Shipt, MyDoc, Bitski,...
» more
A few highlighted customers include: US Army, US Airforce, Chelan PUD, TATA, & Lumen....
» more
Market metrics8K+ long-running clusters 2.5K+ CockroachDB Self-Hosted clusters 15K+ CockroachDB...
» more
Over 26K total HarperDB users : 12,700+ npm downloads 10,000+ on Docker Hub 3,400+...
» 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 data base is only as powerful as it...
» more

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More resources
CockroachDBDgraphHarperDB
Recent citations in the news

CockroachDB adds command line tool as database hits version 22.1
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O'Reilly Launches New Book: CockroachDB the Definitive Guide
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