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DBMS > Crux vs. OpenQM vs. Realm vs. Redis vs. Sequoiadb

System Properties Comparison Crux vs. OpenQM vs. Realm vs. Redis vs. Sequoiadb

Editorial information provided by DB-Engines
NameCrux  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonRealm  Xexclude from comparisonRedis  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionCrux is a general purpose database with bitemporal SQL and Datalog and graph queriesQpenQM is a high-performance, self-tuning, multi-value DBMSA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataIn-memory data structure store, used as database, cache and message broker infoRedis focuses on performance so most of its design decisions prioritize high performance and very low latencies.NewSQL database with distributed OLTP and SQL
Primary database modelDocument storeMultivalue DBMSDocument storeKey-value store infoMultiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistenceDocument store
Relational DBMS
Secondary database modelsDocument store infowith Redis Modules
Graph DBMS infowith Redis Modules
Spatial DBMS
Search engine infowith Redis Modules
Time Series DBMS infowith Redis Modules
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.02
Rank#332  Overall
#44  Document stores
Score0.41
Rank#246  Overall
#10  Multivalue DBMS
Score9.13
Rank#48  Overall
#8  Document stores
Score155.89
Rank#7  Overall
#1  Key-value stores
Score0.38
Rank#254  Overall
#37  Document stores
#117  Relational DBMS
Websitegithub.com/­juxt/­crux
opencrux.com
www.openqm.comrealm.ioredis.iowww.sequoiadb.com
Technical documentationopencrux.com/­reference/­installation.htmlwww.openqm.com/­support/­documentationrealm.io/­docsredis.io/­documentationwww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperJuxt Ltd.Martin PhillipsRealm, acquired by MongoDB in May 2019Salvatore Sanfilippo infoDevelopment sponsored by Redis LabsSequoiadb Ltd.
Initial release20191993201420092013
Current release1.12.1, September 20203.4-126.2.1 , March 2021
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoGPLv2, extended commercial license availableOpen SourceOpen Source infoBSD 3-Clause, commercial license availableOpen Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageClojureCC++
Server operating systemsAll OS with a Java 8 (and higher) VM
Linux
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Android
Backend: server-less
iOS
Windows
BSD
Linux
OS X
Windows infoported and maintained by Microsoft Open Technologies, Inc.
Linux
Data schemeschema-freeyes infowith some exceptionsyesschema-freeschema-free
Typing infopredefined data types such as float or dateyes, extensible-data-notation formatyespartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexesyes infooid, date, timestamp, binary, regex
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.noyesnonono
Secondary indexesyesyesyesyes infowith RediSearch moduleyes
SQL infoSupport of SQLlimited SQL, making use of Apache CalcitenononoSQL-like query language
APIs and other access methodsHTTP REST
JDBC
proprietary protocol infoRESP - REdis Serialization Protocolproprietary protocol using JSON
Supported programming languagesClojure
Java
.Net
Basic
C
Java
Objective C
PHP
Python
.Net
Java infowith Android only
Objective-C
React Native
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
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresnoyesno inforuns within the applications so server-side scripts are unnecessaryLuaJavaScript
Triggersnoyesyes infoChange Listenersno infopublish/subscribe channels provide limited trigger functionalityno
Partitioning methods infoMethods for storing different data on different nodesnoneyesnoneShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, each node contains all datayesnoneMulti-source replication infowith Redis Enterprise Pack
Source-replica replication infoChained replication is supported
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Strong eventual consistency with CRDTs
Eventual Consistency
Foreign keys infoReferential integritynonononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDOptimistic locking, atomic execution of commands blocks and scriptsDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoData access is serialized by the serveryes
Durability infoSupport for making data persistentyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDByesyesyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoIn-Memory realmyesno
User concepts infoAccess controlAccess rights can be defined down to the item levelyesSimple password-based access control infoAccess control lists and SSL are available in the commercial versionsimple password-based access control
More information provided by the system vendor
CruxOpenQM infoalso called QMRealmRedisSequoiadb
Specific characteristicsNow a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Redis, benchmarked as the world's fastest database, reduces application complexity,...
» more
Competitive advantagesRealm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Redis is an in-memory database platform offering native support of wide range of...
» more
Typical application scenariosMobile Consumer Apps First-Line Worker Apps
» more
Redis powers personalization, real-time fraud detection, IoT, e-commerce, real-time...
» more
Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
Verizon, Vodafone, Atlassian, Trip Advisor, Jet.com, Nokia, Samsung, HTC, Docker,...
» more
Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsRealm database is licensed under the Apache License v2.0.
» more
The licensing model is subscription based. Redis Enterprise Cloud is priced according...
» more

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More resources
CruxOpenQM infoalso called QMRealmRedisSequoiadb
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