DB-EnginesInfluxDB: Focus on building software with an easy-to-use serverless, scalable time series platformEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > HarperDB vs. KeyDB

System Properties Comparison HarperDB vs. KeyDB

Please select another system to include it in the comparison.

Our visitors often compare HarperDB and KeyDB with Amazon CloudSearch, MongoDB and MySQL.

Editorial information provided by DB-Engines
NameHarperDB  Xexclude from comparisonKeyDB  Xexclude from comparison
DescriptionA 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.An ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocols
Primary database modelDocument storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.44
Rank#248  Overall
#38  Document stores
Score0.33
Rank#268  Overall
#40  Key-value stores
Websiteharperdb.iogithub.com/­JohnSully/­KeyDB
keydb.dev
Technical documentationharperdb.io/­developers/­documentation/­overviewdocs.keydb.dev
DeveloperHarperDBEQ Alpha Technology Ltd.
Initial release20172019
Current release3.1, August 2021
License infoCommercial or Open Sourcecommercial infofree community edition availableOpen Source infoBSD-3
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageNode.jsC++
Server operating systemsLinux
OS X
Linux
Data schemedynamic schemaschema-free
Typing infopredefined data types such as float or dateyes infoJSON data typespartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes
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 indexesyesyes infoby using the Redis Search module
SQL infoSupport of SQLSQL-like data manipulation statementsno
APIs and other access methodsJDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Proprietary protocol infoRESP - REdis Serialization Protoco
Supported programming languages.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
C
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic
Server-side scripts infoStored proceduresCustom Functions infosince release 3.1Lua
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesA table resides as a whole on one (or more) nodes in a clusterSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infothe nodes on which a table resides can be definedMulti-source replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Strong eventual consistency with CRDTs
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of specific operationsOptimistic locking, atomic execution of commands blocks and scripts
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes, using LMDByes infoConfigurable mechanisms for persistency via snapshots and/or operations logs
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights for users and rolessimple password-based access control and ACL
More information provided by the system vendor
HarperDBKeyDB
Specific characteristicsHarperDB is the first distributed database with hybrid SQL & NoSQL functionality...
» more
Competitive advantagesBy combining the functionality of the best SQL, NoSQL, and NewSQL products on the...
» more
Typical application scenariosUse cases where HarperDB is a better fit than other solutions include: Rapid app...
» more
Key customersA few highlighted customers include: US Army, US Airforce, Chelan PUD, TATA, & Lumen....
» more
Market metricsOver 94K total HarperDB users : 16,500+ npm downloads 73,600+ on Docker Hub 4,200+...
» more
Licensing and pricing modelsHarperDB follows a freemium/premium model . A data base is only as powerful as it...
» more

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
HarperDBKeyDB
Recent citations in the news

Database Management Software Market Size, Scope and Forecast | RingLead, MongoDB, Redis Enterprise, SingleStore.com, Teradata Vantage, SAP HANA, HarperDB, Couchbase Server, Worksheet Systems, Confluent Platform. – Designer Women
6 July 2022, Designer Women

Build a Hacker News Clone using React and HarperDB
18 October 2021, SitePoint

JAMstack Radio | Ep. #85, Data Replication at Speed with Jaxon Repp of HarperDB
19 August 2021, heavybit.com

The Importance Of Staying Humble And Strong Company Culture: Stephen Goldberg, HarperDB CEO
11 August 2021, hackernoon.com

HarperDB: An underdog SQL / NoSQL database
7 February 2018, ZDNet

provided by Google News

Snap snaps up database developer KeyDB to make its infrastructure more snappy
12 May 2022, TechCrunch

4 Easy Ways to Convert DVD to Digital Video on Windows
19 June 2022, MSPoweruser

How To Fix “This Blu-ray Disc Needs A Library For AACS Decoding”
13 April 2022, Tech News Today

Intel takes direct aim at Nvidia
12 May 2022, Protocol

This Week in Apps: Google I/O wraps, a new ARCore API, Twitter deal drama
14 May 2022, TechCrunch

provided by Google News

Job opportunities

Senior Manager IT Infrastructure - Work from Home
Lumen, Broomfield, CO

Senior Manager IT Infrastructure
SEAL Consulting, United States

Chief of Staff
HarperDB, Denver, CO

NodeJS Customer Success Engineer
HarperDB, Denver, CO

Cloud Platform Software Engineer
HarperDB, Denver, CO

Backend Software Engineer
Health Recovery Solutions, Hoboken, NJ

Senior Cloud Architect - Remote
Akamai, United States

jobs by Indeed



Share this page

Featured Products

Redis logo

The world’s most loved real‑time data platform.
Try free

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

The definitive guide for Cassandra

Imagine What You Could Do if Scalability Wasn‘t a Problem!
Download the Cassandra e-book for free!

Vertica logo

Vertica Accelerator. The fastest analytics and machine learning, delivered as SaaS, with automated setup, administration, and management. Free trial.

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here