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DBMS > Alibaba Cloud PolarDB vs. dBASE vs. eXtremeDB vs. LokiJS

System Properties Comparison Alibaba Cloud PolarDB vs. dBASE vs. eXtremeDB vs. LokiJS

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Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisondBASE  Xexclude from comparisoneXtremeDB  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.dBase was one of the first databases with a development environment on PC's. Its latest version dBase V is still sold as dBase classic, which needs a DOS Emulation. The up-to-date product is dBase plus.Natively in-memory DBMS with options for persistency, high-availability and clusteringIn-memory JavaScript DBMS
Primary database modelRelational DBMSRelational DBMSRelational DBMS
Time Series DBMS
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.66
Rank#235  Overall
#108  Relational DBMS
Score9.70
Rank#44  Overall
#28  Relational DBMS
Score0.80
Rank#214  Overall
#99  Relational DBMS
#18  Time Series DBMS
Score0.49
Rank#260  Overall
#42  Document stores
Websitewww.alibabacloud.com/­product/­polardbwww.dbase.comwww.mcobject.comgithub.com/­techfort/­LokiJS
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewwww.dbase.com/­support/­knowledgebasewww.mcobject.com/­docs/­extremedb.htmtechfort.github.io/­LokiJS
DeveloperAlibabaAsthon TateMcObject
Initial release197920012014
Current releasedBASE 2019, 20198.2, 2021
License infoCommercial or Open SourcecommercialcommercialcommercialOpen Source
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC and C++JavaScript
Server operating systemshostedDOS infodBase Classic
Windows infodBase Pro
AIX
HP-UX
Linux
macOS
Solaris
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesyesyesschema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.yesno infosupport of XML interfaces availableno
Secondary indexesyesyesyesyes infovia views
SQL infoSupport of SQLyesnoyes infowith the option: eXtremeSQLno
APIs and other access methodsJDBC
ODBC
none infoThe IDE can access other DBMS or ODBC-sources..NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
JavaScript API
Supported programming languagesJava
Python
dBase proprietary IDE.Net
C
C#
C++
Java
Lua
Python
Scala
JavaScript
Server-side scripts infoStored proceduresyesno infoThe IDE can access stored procedures in other database systems.yesView functions in JavaScript
Triggersyesnoyes infoby defining eventsyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicenonehorizontal partitioning / shardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud servicenoneActive Replication Fabricâ„¢ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistencynone
Foreign keys infoReferential integrityyesyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infonot for dBase internal data, but IDE does support transactions when accessing external DBMSACIDno infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoOptimistic (MVCC) and pessimistic (locking) strategies available
Durability infoSupport for making data persistentyesyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess rights for users and rolesno
More information provided by the system vendor
Alibaba Cloud PolarDBdBASEeXtremeDBLokiJS
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
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eXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
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Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
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eXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
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Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
» more
IoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
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Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Market metricsWith hundreds of customers and over 30 million devices/applications using the product...
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Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more
For server use cases, there is a simple per-server license irrespective of the number...
» more

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Alibaba Cloud PolarDBdBASEeXtremeDBLokiJS
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