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DBMS > Alibaba Cloud PolarDB vs. LokiJS vs. Sequoiadb

System Properties Comparison Alibaba Cloud PolarDB vs. LokiJS vs. Sequoiadb

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Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonLokiJS  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.In-memory JavaScript DBMSNewSQL database with distributed OLTP and SQL
Primary database modelRelational DBMSDocument storeDocument store
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.59
Rank#241  Overall
#110  Relational DBMS
Score0.43
Rank#264  Overall
#42  Document stores
Score0.45
Rank#261  Overall
#41  Document stores
#122  Relational DBMS
Websitewww.alibabacloud.com/­product/­polardbgithub.com/­techfort/­LokiJSwww.sequoiadb.com
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewtechfort.github.io/­LokiJSwww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperAlibabaSequoiadb Ltd.
Initial release20142013
License infoCommercial or Open SourcecommercialOpen SourceOpen Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++
Server operating systemshostedserver-less, requires a JavaScript environment (browser, Node.js)Linux
Data schemeyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesnoyes 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.yesnono
Secondary indexesyesyes infovia viewsyes
SQL infoSupport of SQLyesnoSQL-like query language
APIs and other access methodsJDBC
ODBC
JavaScript APIproprietary protocol using JSON
Supported programming languagesJava
Python
JavaScript.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresyesView functions in JavaScriptJavaScript
Triggersyesyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud servicenoneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneEventual Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a single collection possibleDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardnosimple password-based access control
More information provided by the system vendor
Alibaba Cloud PolarDBLokiJSSequoiadb
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...
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
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Alibaba Cloud PolarDBLokiJSSequoiadb
DB-Engines blog posts

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