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DBMS > Alibaba Cloud PolarDB vs. CouchDB vs. FatDB vs. Galaxybase vs. Kyligence Enterprise

System Properties Comparison Alibaba Cloud PolarDB vs. CouchDB vs. FatDB vs. Galaxybase vs. Kyligence Enterprise

Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonFatDB  Xexclude from comparisonGalaxybase  Xexclude from comparisonKyligence Enterprise  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.A native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.A .NET NoSQL DBMS that can integrate with and extend SQL Server.Scalable, ACID-compliant native distributed parallel graph platformA distributed analytics engine for big data, built on top of Apache Kylin
Primary database modelRelational DBMSDocument storeDocument store
Key-value store
Graph DBMSRelational DBMS
Secondary database modelsSpatial DBMS infousing the Geocouch extension
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.66
Rank#235  Overall
#108  Relational DBMS
Score8.30
Rank#47  Overall
#7  Document stores
Score0.07
Rank#377  Overall
#40  Graph DBMS
Score0.46
Rank#266  Overall
#124  Relational DBMS
Websitewww.alibabacloud.com/­product/­polardbcouchdb.apache.orggalaxybase.comkyligence.io/­kyligence-enterprise
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewdocs.couchdb.org/­en/­stable
DeveloperAlibabaApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerFatCloudChuanglin(Createlink) Technology Co., Ltd 浙江创邻科技有限公司Kyligence, Inc.
Initial release2005201220172016
Current release3.3.3, December 2023Nov 20, November 2021
License infoCommercial or Open SourcecommercialOpen Source infoApache version 2commercialcommercialcommercial
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageErlangC#C and JavaJava
Server operating systemshostedAndroid
BSD
Linux
OS X
Solaris
Windows
WindowsLinuxLinux
Data schemeyesschema-freeschema-freeStrong typed schemayes
Typing infopredefined data types such as float or dateyesnoyesyesyes
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.yesnonono
Secondary indexesyesyes infovia viewsyesyesyes
SQL infoSupport of SQLyesnono infoVia inetgration in SQL ServernoANSI SQL for queries (using Apache Calcite)
APIs and other access methodsJDBC
ODBC
RESTful HTTP/JSON API.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
Browser interface
console (shell)
Graph API (Gremlin)
OpenCypher
Proprietary native API
JDBC
ODBC
RESTful HTTP API
Supported programming languagesJava
Python
C
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
C#Go
Java
Python
Server-side scripts infoStored proceduresyesView functions in JavaScriptyes infovia applicationsuser defined procedures and functions
Triggersyesyesyes infovia applications
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceSharding infoimproved architecture with release 2.0ShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceMulti-source replication
Source-replica replication
selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesyesnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a single document possiblenoACID
Concurrency infoSupport for concurrent manipulation of datayesyes infostrategy: optimistic lockingyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess rights for users can be defined per databaseno infoCan implement custom security layer via applicationsRole-based access control
More information provided by the system vendor
Alibaba Cloud PolarDBCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"FatDBGalaxybaseKyligence Enterprise
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
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Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
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Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
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Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
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Alibaba Cloud PolarDBCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"FatDBGalaxybaseKyligence Enterprise
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