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DBMS > CouchDB vs. CrateDB vs. Realm vs. SAP Adaptive Server

System Properties Comparison CouchDB vs. CrateDB vs. Realm vs. SAP Adaptive Server

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Editorial information provided by DB-Engines
NameCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonCrateDB  Xexclude from comparisonRealm  Xexclude from comparisonSAP Adaptive Server infoformer name: Sybase ASE  Xexclude from comparison
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.Distributed Date Store based on LuceneA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataThe SAP (Sybase) Adaptive Server Enterprise (ASE) is an enterprise-class RDBMS
Primary database modelDocument storeRelational DBMS
Search engine
Document storeRelational DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score17.77
Rank#34  Overall
#5  Document stores
Score0.65
Rank#188  Overall
#92  Relational DBMS
#13  Search engines
Score8.54
Rank#45  Overall
#8  Document stores
Score52.63
Rank#19  Overall
#12  Relational DBMS
Websitecouchdb.apache.orgcrate.iorealm.iowww.sap.com/­products/­sybase-ase.html
Technical documentationdocs.couchdb.org/­en/­stablecrate.io/­docsrealm.io/­docshelp.sap.com/­adaptive-server-enterprise
DeveloperApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerCrateRealm, acquired by MongoDB in May 2019SAP, Sybase
Initial release2005201320141987
Current release3.0, February 202016.0
License infoCommercial or Open SourceOpen Source infoApache version 2Open SourceOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageErlangJavaC and C++
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
All OS with a Java 7 VMAndroid
Backend: server-less
iOS
Windows
AIX
HP-UX
Linux
Solaris
Unix
Windows
Data schemeschema-freeFlexible Schema (defined schema, partial schema, schema free)yesyes
Typing infopredefined data types such as float or datenoyesyesyes
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 indexesyes infovia viewsyesyesyes
SQL infoSupport of SQLnoyes, but no triggers and constraintsnoyes
APIs and other access methodsRESTful HTTP/JSON APIADO.NET infocommunity maintained client
JDBC
MQTT (Message Queue Telemetry Transport)
PostgreSQL wire protocol
Prometheus Remote Read/Write
RESTful HTTP API
ADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
Erlang
Go infocommunity maintained client
Java
JavaScript (Node.js) infocommunity maintained client
Perl infocommunity maintained client
PHP
Python
Ruby infocommunity maintained client
Scala infocommunity maintained client
.Net
Java infowith Android only
Objective-C
React Native
Swift
C
C++
Cobol
Java
Java
Perl
PHP
Python
Server-side scripts infoStored proceduresView functions in JavaScriptuser defined functionsno inforuns within the applications so server-side scripts are unnecessaryJava and Transact-SQL
Triggersyesnoyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoimproved architecture with release 2.0Shardingnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-master replication
Master-slave replication
selectable replication factornoneMaster-master replication
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyEventual Consistency
Read Your Own Writes Consistency infofor primary key lookups
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single document possibleno infounique row identifiers can be used for implementing an optimistic concurrency control strategyACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoIn-Memory realm
User concepts infoAccess controlAccess rights for users can be defined per databaserights management via user accountsyesfine grained access rights according to SQL-standard
More information provided by the system vendor
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"CrateDBRealmSAP Adaptive Server infoformer name: Sybase ASE
Specific characteristicsCrateDB is an open source distributed SQL database that spreads data and processing...
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Now a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
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Competitive advantagesCrateDB is typically used in operational analytics applications, particularly those...
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Realm ensures offline-first functionality, meaning apps run smoothly and deliver...
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Typical application scenariosCrateDB is ideal for integrating and analyzing streams of data--often machine-generated--in...
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Mobile Consumer Apps First-Line Worker Apps
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Key customersCrateDB customers include McAfee, Qualtrics , Nokia, NBC Golfnow , Digital Domain...
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Cathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
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Market metricsThe CrateDB open source project was started in 2014. CrateDB was the winner of TechCrunch...
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Used by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
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Licensing and pricing modelsCrateDB pricing CrateDB Community Edition is open source and free to use under the...
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Realm database is licensed under the Apache License v2.0.
» more

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More resources
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"CrateDBRealmSAP Adaptive Server infoformer name: Sybase ASE
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