DBMS > 4D vs. FatDB vs. HarperDB vs. RethinkDB

System Properties Comparison 4D vs. FatDB vs. HarperDB vs. RethinkDB

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Editorial information provided by DB-Engines

Name

FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.

Description

Application development environment with integrated database management system

A .NET NoSQL DBMS that can integrate with and extend SQL Server.

A DBMS for IoT projects, analytical and transactional use cases , runnable on IoT devices and in the cloud, in distributed and replicated environments

DBMS for the Web with a mechanism to push updated query results to applications in realtime.

Primary database model

Relational DBMS

Document store
Key-value store

Document store

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	2.58
Rank	#109	Overall
	#54	Relational DBMS

Score	0.48
Rank	#235	Overall
	#36	Document stores

Score	4.17
Rank	#82	Overall
	#14	Document stores

Website

www.4d.com

harperdb.io

rethinkdb.com

Technical documentation

livedoc.4d.com

docs.harperdb.io

rethinkdb.com/docs

Developer

4D, Inc

FatCloud

HarperDB

The Linux Foundation

since July 2017

Initial release

1984

2012

2017

2009

Current release

v18.1, March 2020

2.4.0, December 2019

License

Commercial or Open Source

commercial

free community edition available

Open Source

Apache Version 2

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

Node.js

C++

Server operating systems

OS X
Windows

Windows

Linux
OS X

Linux
OS X
Windows

Data scheme

yes

schema-free

dynamic schema

schema-free

Typing

predefined data types such as float or date

yes

JSON data types

yes

string, binary, float, bool, date, geometry

XML support

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

yes

Secondary indexes

yes

SQL

Support of SQL

yes

close to SQL 92

Via inetgration in SQL Server

SQL-like data manipulation statements

APIs and other access methods

ODBC
RESTful HTTP API

by using 4D Mobile
SOAP webservices

.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings

JDBC
ODBC
RESTful HTTP/JSON API

Supported programming languages

4D proprietary IDE
PHP

community-supported driver
C#

community-supported driver
C++

community-supported driver
Clojure

community-supported driver
Dart

community-supported driver
Erlang

community-supported driver
Go

community-supported driver
Haskell

community-supported driver
Java

official driver
JavaScript (Node.js)

official driver
Lisp

community-supported driver
Lua

community-supported driver
Objective-C

community-supported driver
Perl

community-supported driver
PHP

community-supported driver
Python

official driver
Ruby

official driver
Scala

community-supported driver

Server-side scripts

Stored procedures

yes

via applications

Triggers

yes

via applications

Client-side triggers through changefeeds

Partitioning methods

Methods for storing different data on different nodes

none

Sharding

A table resides as a whole on one (or more) nodes in a cluster

Sharding

range based

Replication methods

Methods for redundantly storing data on multiple nodes

Multi-source replication

selectable replication factor

yes

the nodes on which a table resides can be defined

Source-replica replication

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Eventual Consistency
Immediate Consistency

Immediate Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

ACID

Atomic execution of specific operations

Atomic single-document operations

Concurrency

Support for concurrent manipulation of data

yes

MVCC based

Durability

Support for making data persistent

yes

yes, using LMDB

yes

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts

Access control

Users and groups

Can implement custom security layer via applications

Access rights for users and roles

yes

users and table-level permissions

More information provided by the system vendor

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

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More resources

DB-Engines blog posts

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

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Meet some database management systems you are likely to hear more about in the future
4 August 2014, Paul Andlinger

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Recent citations in the news

HarperDB Releases HarperDB Cloud
22 April 2020, PRNewswire

HarperDB: It’s all about the (open) DBaaS
20 July 2020, ComputerWeekly.com

HarperDB and Dianomic Systems Collaborate to Enhance Edge Industrial Solutions
1 July 2020, PRNewswire

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

Levyx and HarperDB Partnership Paves the Way to a Smarter IoT Edge
26 July 2019, GlobeNewswire

provided by Google News

NoSQL Databases Software Market SWOT Analysis by Key Players: Azure Cosmos DB, Couchbase, MarkLogic, RethinkDB
11 January 2021, SoccerNurds

Global NoSQL Software Market 2020 Set To See Future Growth till 2024: Key Contributors MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase, MarkLogic, RethinkDB, CouchDB, SQL-RD, OrientDB, RavenDB, Redis, Microsoft
14 January 2021, Jumbo News

Open Source Software Market Current Trends and Future Growth Analysis by Key Players – SUSE, OpenText, Adobe, RethinkDB, Comiit, Compiere
14 January 2021, Jumbo News

Open Source Software Market SWOT Analysis, by Key Players: Intel, Epson, IBM, Transcend, Oracle, Acquia, OpenText, Alfresco, Astaro, RethinkDB, Canonical, ClearCenter, Cleversafe, Compiere, Continuent
13 January 2021, Jumbo News

Global Document Databases Software Market Share By Top Key Players- MongoDB Amazon ArangoDB Azure Cosmos DB Couchbase MarkLogic RethinkDB CouchDB SQL-RD OrientDB RavenDB Redis
12 January 2021, Jumbo News

provided by Google News

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