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DBMS > Cassandra vs. Couchbase vs. Microsoft SQL Server vs. Redis

System Properties Comparison Cassandra vs. Couchbase vs. Microsoft SQL Server vs. Redis

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Editorial information provided by DB-Engines
NameCassandra  Xexclude from comparisonCouchbase infoOriginally called Membase  Xexclude from comparisonMicrosoft SQL Server  Xexclude from comparisonRedis  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessA distributed document store with a powerful search engine and in-built operational and analytical capabilitiesMicrosofts flagship relational DBMSPopular in-memory data platform used as a cache, message broker, and database that can be deployed on-premises, across clouds, and hybrid environments infoRedis focuses on performance so most of its design decisions prioritize high performance and very low latencies.
Primary database modelWide column storeDocument storeRelational DBMSKey-value store infoMultiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
Spatial DBMS infousing the Geocouch extension
Document store
Graph DBMS
Spatial DBMS
Document store infowith RedisJSON
Graph DBMS infowith RedisGraph
Spatial DBMS
Search engine infowith RediSearch
Time Series DBMS infowith RedisTimeSeries
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score116.31
Rank#12  Overall
#1  Wide column stores
Score25.30
Rank#30  Overall
#5  Document stores
Score919.39
Rank#3  Overall
#3  Relational DBMS
Score177.56
Rank#6  Overall
#1  Key-value stores
Websitecassandra.apache.orgwww.couchbase.comwww.microsoft.com/­en-us/­sql-serverredis.com
redis.io
Technical documentationcassandra.apache.org/­doc/­latestdocs.couchbase.comdocs.microsoft.com/­en-US/­sql/­sql-serverdocs.redis.com/­latest/­index.html
redis.io/­documentation
Social network pagesLinkedInTwitterFacebookYouTubeDiscord
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookCouchbase, Inc.MicrosoftRedis project core team, inspired by Salvatore Sanfilippo infoDevelopment sponsored by Redis Inc.
Initial release2008201119892009
Current release4.1.0, December 2022Server: 7.0, July 2021; Mobile: 3, February 2022; Couchbase Capella, October 2021SQL Server 2022, November 20227.0.8, January 2023
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoApache version 2; Commercial licenses also availablecommercial inforestricted free version is availableOpen Source infosource-available extensions (modules), commercial licenses for Redis Enterprise
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
  • Aiven for Apache Cassandra: Fully managed, open source NoSQL database specifically designed to be highly available, performant, and scalable.
  • Astra DB: Multi-cloud DBaaS built on Apache Cassandra.
Couchbase Capella: a fully managed database-as-a-service that eliminates database management efforts and reduces cost
  • ScaleGrid Hosting for Redis: Fully managed hosting for Redis on a wide variety of cloud providers and On-Premises. Get advanced monitoring and automate your management through one centralized platform.
  • Redis Enterprise Cloud: Instantly scale and pay only for the resources you need - on any cloud - AWS, Azure or Google Cloud.
  • Aiven for Redis: Fully managed in-memory key-value store, for all your caching and speedy lookup needs.
Implementation languageJavaC, C++, Go and ErlangC++C
Server operating systemsBSD
Linux
OS X
Windows
Linux
OS X
Windows
Linux
Windows
BSD
Linux
OS X
Windows infoported and maintained by Microsoft Open Technologies, Inc.
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyesyes infoString, Boolean, Numberyespartial 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.noyesno
Secondary indexesrestricted infoonly equality queries, not always the best performing solutionyesyesyes infowith RediSearch module
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)Declarative query language (N1QL) that extends ANSI SQL to JSON. First commercial implementation of SQL++.yesno
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
Native language bindings for CRUD, Query, Search and Analytics APIsADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
proprietary protocol infoRESP - REdis Serialization Protocol
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
.Net
C
Go
Java
JavaScript infoNode.js
PHP
Python
Ruby
Scala
C#
C++
Delphi
Go
Java
JavaScript (Node.js)
PHP
Python
R
Ruby
Visual Basic
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 proceduresnoFunctions and timers in JavaScriptTransact SQL, .NET languages, R, Python and (with SQL Server 2019) JavaLua; Redis Functions coming in Redis 7 (slides and Github)
Triggersyesyes infovia the TAP protocolyespublish/subscribe channels provide some trigger functionality; RedisGears
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"Shardingtables can be distributed across several files (horizontal partitioning); sharding through federationSharding infoAutomatic hash-based sharding with support for hash-tags for manual sharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMulti-source replication infoincluding cross data center replication
Source-replica replication
yes, but depending on the SQL-Server EditionMulti-source replication infowith Redis Enterprise Pack
Source-replica replication infoChained replication is supported
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesnothrough RedisGears
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Immediate ConsistencyEventual Consistency
Causal consistency can be enabled in Active-Active databases
Strong consistency with Redis Raft
Strong eventual consistency with Active-Active
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsACIDACIDAtomic execution of command blocks and scripts and optimistic locking
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoData access is serialized by the server
Durability infoSupport for making data persistentyesyesyesyes 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.noyes infoEphemeral bucketsyesyes
User concepts infoAccess controlAccess rights for users can be defined per objectUser and Administrator separation with password-based and LDAP integrated Authenticationfine grained access rights according to SQL-standardAccess Control Lists (ACLs): redis.io/­topics/­acl
LDAP and Role-Based Access Control (RBAC) for Redis Enterprise
Mutual TLS authentication: redis.io/­topics/­encryption
Password-based authentication
More information provided by the system vendor
CassandraCouchbase infoOriginally called MembaseMicrosoft SQL ServerRedis
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
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Developed as an alternative to traditionally inflexible relational databases, Couchbase...
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The Redis real-time data platform builds upon the unmatched simplicity and speed...
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Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
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Couchbase was architected with several differentiated capabilities: Shared-nothing,...
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Redis Enterprise is a robust in-memory database platform built by the people who...
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Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
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Customer 360 for user profile, session store and data aggregation (Comcast, Equifax,...
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Redis Enterprise is used by large enterprise, startup, and government organizations...
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Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
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Amadeus, AT&T, BD (Becton, Dickinson and Company), Carrefour, Cisco, Comcast, Disney,...
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Verizon, Vodafone, Atlassian, Trip Advisor, Jet.com, Nokia, Samsung, HTC, Docker,...
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Market metricsCassandra is used by 40% of the Fortune 100.
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Named a leader in the Forrester Wave™: Big Data NoSQL, Q1 2019 Over 10M downloads...
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Most launched Docker container per day according to Docker Hub (7.2M launches per...
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Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
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The Community Edition (CE) of Couchbase Server and Couchbase Mobile are available...
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Redis Enterprise Cloud lets users scale up and down instantly, and pay only for the...
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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.

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3rd partiesDataStax Cassandra: Zero touch operations, configuration and management with true autoscaling
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More resources
CassandraCouchbase infoOriginally called MembaseMicrosoft SQL ServerRedis
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