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

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

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Editorial information provided by DB-Engines

Name

Sqrrl has been acquired by Amazon and became a part of Amazon Web Services. It has been removed from the DB-Engines ranking.

Description

Application development environment with integrated database management system

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.

Adaptable, secure NoSQL built on Apache Accumulo

Primary database model

Relational DBMS

Document store

Document store
Graph DBMS
Key-value store
Wide column 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

sqrrl.com

Technical documentation

livedoc.4d.com

docs.harperdb.io

rethinkdb.com/docs

Developer

4D, Inc

HarperDB

The Linux Foundation

since July 2017

Amazon

originally Sqrrl Data, Inc.

Initial release

1984

2017

2009

2012

Current release

v18.1, March 2020

2.4.1, August 2020

License

Commercial or Open Source

commercial

free community edition available

Open Source

Apache Version 2

commercial

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++

Java

Server operating systems

OS X
Windows

Linux
OS X

Linux
OS X
Windows

Linux

Data scheme

yes

dynamic schema

schema-free

Typing

predefined data types such as float or date

yes

JSON data types

yes

string, binary, float, bool, date, geometry

yes

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

SQL-like data manipulation statements

APIs and other access methods

ODBC
RESTful HTTP API

by using 4D Mobile
SOAP webservices

JDBC
ODBC
RESTful HTTP/JSON API

Accumulo Shell
Java API
JDBC
ODBC
RESTful HTTP API
Thrift

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

Actionscript
C

using GLib
C#
C++
Cocoa
Delphi
Erlang
Go
Haskell
Java
JavaScript
OCaml
Perl
PHP
Python
Ruby
Smalltalk

Server-side scripts

Stored procedures

yes

Triggers

yes

Client-side triggers through changefeeds

Partitioning methods

Methods for storing different data on different nodes

none

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

Sharding

range based

Sharding

making use of Hadoop

Replication methods

Methods for redundantly storing data on multiple nodes

Multi-source replication

yes

the nodes on which a table resides can be defined

Source-replica replication

selectable replication factor

making use of Hadoop

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Document store kept consistent with combination of global timestamping, row-level transactions, and server-side consistency resolution.

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

Atomic updates per row, document, or graph entity

Concurrency

Support for concurrent manipulation of data

yes

MVCC based

yes

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

Access rights for users and roles

yes

users and table-level permissions

Cell-level Security, Data-Centric Security, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC)

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More resources

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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 Cloud: The Database-as-a-Service for developers looking to build apps fast and cut costs
24 April 2020, Help Net Security

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

provided by Google News

Global Open Source Software Market 2021 Size, Share, Forecast to 2027: SUSE, OpenText, Adobe, RethinkDB, Comiit, Compiere – Reviewindependent
26 January 2021, Reviewindependent

Document Databases Software Market Report 2025 : MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase, MarkLogic, RethinkDB, CouchDB, SQL-RD, OrientDB, RavenDB, Redis
27 January 2021, NeighborWebSJ

Open Source Software Market Next Big Thing: Major Giants Alfresco, Red Hat, Acquia, OpenText - Press Release
26 January 2021, Digital Journal

NoSQL Databases Software Market SWOT Analysis, by Key Players: MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase, MarkLogic, RethinkDB, CouchDB, SQL-RD, OrientDB, RavenDB, Redis – Murphy's Hockey Law
25 January 2021, Murphy's Hockey Law

CybelAngel Uncovers Risks from Invisible Devices and Hidden Data Exposures with New Asset Discovery and Monitoring Service
26 January 2021, Business Wire

provided by Google News

SQRRL: Helping young Indians save and grow their money
24 January 2021, The Financial Express

User And Entity Behavior Analytics Market Regional Analysis, Industry Dynamics 2027 by Top Companies – Niara Inc, Sqrrl Data，Inc, Rapid7, Varonis Systems, Bay Dynamics, Exabeam, Bottomline Technologies，Inc, Observe IT, Gurucul, Splunk Inc., Securonix, Dtex Systems
25 January 2021, NeighborWebSJ

User And Entity Behavior Analytics Market Growth Opportunities, Share by Industry Competitors – Bottomline Technologies?Inc, Niara Inc, Varonis Systems, Sqrrl Data?Inc, Bay Dynamics, Exabeam, Rapid7, Splunk Inc., Securonix, Observe IT, Dtex Systems, Gurucul
19 January 2021, NeighborWebSJ

Amazon's cloud business acquires Sqrrl, a security start-up with NSA roots
23 January 2018, CNBC

Sqrrl Fintech partners with Tax Filing Platform Quicko to facilitate ITR filing - CRN - India
22 December 2020, CRN.in

provided by Google News

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