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DBMS > Alibaba Cloud PolarDB vs. Apache Phoenix vs. LokiJS vs. NCache vs. Oracle Coherence

System Properties Comparison Alibaba Cloud PolarDB vs. Apache Phoenix vs. LokiJS vs. NCache vs. Oracle Coherence

Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonApache Phoenix  Xexclude from comparisonLokiJS  Xexclude from comparisonNCache  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.A scale-out RDBMS with evolutionary schema built on Apache HBaseIn-memory JavaScript DBMSOpen-Source and Enterprise in-memory Key-Value StoreOracles in-memory data grid solution
Primary database modelRelational DBMSRelational DBMSDocument storeKey-value storeKey-value store
Secondary database modelsDocument store
Search engine infoUsing distributed Lucene
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.66
Rank#235  Overall
#108  Relational DBMS
Score2.06
Rank#123  Overall
#58  Relational DBMS
Score0.49
Rank#260  Overall
#42  Document stores
Score0.96
Rank#195  Overall
#29  Key-value stores
Score1.97
Rank#129  Overall
#22  Key-value stores
Websitewww.alibabacloud.com/­product/­polardbphoenix.apache.orggithub.com/­techfort/­LokiJSwww.alachisoft.com/­ncachewww.oracle.com/­java/­coherence
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewphoenix.apache.orgtechfort.github.io/­LokiJSwww.alachisoft.com/­resources/­docsdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperAlibabaApache Software FoundationAlachisoftOracle
Initial release2014201420052007
Current release5.0-HBase2, July 2018 and 4.15-HBase1, December 20195.3.3, April 202414.1, August 2023
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0Open SourceOpen Source infoEnterprise Edition availablecommercial
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaScriptC#, .NET, .NET Core, JavaJava
Server operating systemshostedLinux
Unix
Windows
server-less, requires a JavaScript environment (browser, Node.js)Linux
Windows
All OS with a Java VM
Data schemeyesyes infolate-bound, schema-on-read capabilitiesschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesnopartial infoSupported data types are Lists, Queues, Hashsets, Dictionary and Counteryes
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.yesnononono
Secondary indexesyesyesyes infovia viewsyesno
SQL infoSupport of SQLyesyesnoSQL-like query syntax and LINQ for searching the cache. Cache Synchronization with SQL Server using SQL dependency.no
APIs and other access methodsJDBC
ODBC
JDBCJavaScript APIIDistributedCache
JCache
LINQ
Proprietary native API
JCache
JPA
RESTful HTTP API
Supported programming languagesJava
Python
C
C#
C++
Go
Groovy
Java
PHP
Python
Scala
JavaScript.Net
.Net Core
C#
Java
JavaScript (Node.js)
Python
Scala
.Net
C++
Java
Server-side scripts infoStored proceduresyesuser defined functionsView functions in JavaScriptno infosupport for stored procedures with SQL-Server CLRno
Triggersyesnoyesyes infoNotificationsyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceShardingnoneyesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceMulti-source replication
Source-replica replication
noneyes, with selectable consistency levelyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoHadoop integrationyesyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency or Eventual ConsistencynoneEventual Consistency
Immediate Consistency
Strong Eventual Consistency over WAN with Conflict Resolution using Bridge Topology
Eventual Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesnononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDno infoatomic operations within a single collection possibleoptimistic locking and pessimistic lockingconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess Control Lists (using HBase ACL) for RBAC, integration with Apache Ranger for RBAC & ABAC, multi-tenancynoAuthentication to access the cache via Active Directory/LDAP (possible roles: user, administrator)authentification to access the cache via certificates or http basic authentication
More information provided by the system vendor
Alibaba Cloud PolarDBApache PhoenixLokiJSNCacheOracle Coherence
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
» more
NCache has been the market leader in .NET Distributed Caching since 2005 . NCache...
» more
Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
» more
NCache is 100% .NET/ .NET Core based which fully supports ASP.NET Core Sessions ,...
» more
Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
» more
NCache enables industries like retail, finance, banking IoT, travel, ecommerce, healthcare...
» more
Key customersBank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
» more
Market metricsMarket Leader in .NET Distributed Caching since 2005.
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more
NCache Open Source is free on an as-is basis without any support. NCache Enterprise...
» more

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More resources
Alibaba Cloud PolarDBApache PhoenixLokiJSNCacheOracle Coherence
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