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DBMS > Apache Druid vs. Couchbase vs. IBM Cloudant vs. Quasardb vs. SQL.JS

System Properties Comparison Apache Druid vs. Couchbase vs. IBM Cloudant vs. Quasardb vs. SQL.JS

Editorial information provided by DB-Engines
NameApache Druid  Xexclude from comparisonCouchbase infoOriginally called Membase  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonQuasardb  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionOpen-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality dataA distributed document store with integrated cache, a powerful search engine, in-built operational and analytical capabilities, and an embedded mobile databaseDatabase as a Service offering based on Apache CouchDBDistributed, high-performance timeseries databasePort of SQLite to JavaScript
Primary database modelRelational DBMS
Time Series DBMS
Document storeDocument storeTime Series DBMSRelational DBMS
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
Spatial DBMS infousing the Geocouch extension
Search engine
Time Series DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.25
Rank#90  Overall
#47  Relational DBMS
#7  Time Series DBMS
Score16.59
Rank#36  Overall
#5  Document stores
Score2.75
Rank#104  Overall
#19  Document stores
Score0.21
Rank#322  Overall
#29  Time Series DBMS
Score0.63
Rank#241  Overall
#112  Relational DBMS
Websitedruid.apache.orgwww.couchbase.comwww.ibm.com/­products/­cloudantquasar.aisql.js.org
Technical documentationdruid.apache.org/­docs/­latest/­designdocs.couchbase.comcloud.ibm.com/­docs/­Cloudantdoc.quasar.ai/­mastersql.js.org/­documentation/­index.html
DeveloperApache Software Foundation and contributorsCouchbase, Inc.IBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014quasardbAlon Zakai infoenhancements implemented by others
Initial release20122011201020092012
Current release29.0.1, April 2024Server: 7.2, June 2023; Mobile: 3.1, March 2022; Couchbase Capella (DBaaS), June 20233.14.1, January 2024
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoBusiness Source License (BSL 1.1); Commercial licenses also availablecommercialcommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen Source
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC, C++, Go and ErlangErlangC++JavaScript
Server operating systemsLinux
OS X
Unix
Linux
OS X
Windows
hostedBSD
Linux
OS X
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyes infoschema-less columns are supportedschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyesyesnoyes infointeger and binaryyes
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.nononono
Secondary indexesyesyesyesyes infowith tags
SQL infoSupport of SQLSQL for queryingSQL++, extends ANSI SQL to JSON for operational, transactional, and analytic use casesnoSQL-like query languageyes infoSQL-92 is not fully supported
APIs and other access methodsJDBC
RESTful HTTP/JSON API
CLI Client
HTTP REST
Kafka Connector
Native language bindings for CRUD, Query, Search and Analytics APIs
Spark Connector
Spring Data
RESTful HTTP/JSON APIHTTP APIJavaScript API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
.Net
C
Go
Java
JavaScript infoNode.js
Kotlin
PHP
Python
Ruby
Scala
C#
Java
JavaScript
Objective-C
PHP
Ruby
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
JavaScript
Server-side scripts infoStored proceduresnoFunctions and timers in JavaScript and UDFs in Java, Python, SQL++View functions (Map-Reduce) in JavaScriptnono
Triggersnoyes infovia the TAP protocolyesnono
Partitioning methods infoMethods for storing different data on different nodesSharding infomanual/auto, time-basedAutomatic ShardingShardingSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesMulti-source replication infoincluding cross data center replication
Source-replica replication
Multi-source replication
Source-replica replication
Source-replica replication with selectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesyeswith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Eventual ConsistencyImmediate Consistencynone
Foreign keys infoReferential integritynonononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno infoatomic operations within a document possibleACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoOptimistic lockingyes
Durability infoSupport for making data persistentyesyesyesyes infoby using LevelDBno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoEphemeral bucketsnoyes infoTransient modeyes
User concepts infoAccess controlRBAC using LDAP or Druid internals for users and groups for read/write by datasource and systemUser and Administrator separation with password-based and LDAP integrated Authentication. Role-base access control.Access rights for users can be defined per databaseCryptographically strong user authentication and audit trailno

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More resources
Apache DruidCouchbase infoOriginally called MembaseIBM CloudantQuasardbSQL.JS
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