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DBMS > Alibaba Cloud Table Store vs. Apache Impala vs. DataFS vs. PouchDB

System Properties Comparison Alibaba Cloud Table Store vs. Apache Impala vs. DataFS vs. PouchDB

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Editorial information provided by DB-Engines
NameAlibaba Cloud Table Store  Xexclude from comparisonApache Impala  Xexclude from comparisonDataFS  Xexclude from comparisonPouchDB  Xexclude from comparison
DescriptionA fully managed Wide Column Store for large quantities of semi-structured data with real-time accessAnalytic DBMS for HadoopAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.JavaScript DBMS with an API inspired by CouchDB
Primary database modelWide column storeRelational DBMSObject oriented DBMSDocument store
Secondary database modelsDocument storeGraph DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#297  Overall
#11  Wide column stores
Score12.45
Rank#40  Overall
#24  Relational DBMS
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score2.34
Rank#112  Overall
#21  Document stores
Websitewww.alibabacloud.com/­product/­table-storeimpala.apache.orgnewdatabase.compouchdb.com
Technical documentationwww.alibabacloud.com/­help/­en/­tablestoreimpala.apache.org/­impala-docs.htmldev.mobiland.com/­Overview.xsppouchdb.com/­guides
DeveloperAlibabaApache Software Foundation infoApache top-level project, originally developed by ClouderaMobiland AGApache Software Foundation
Initial release2016201320182012
Current release4.1.0, June 20221.1.263, October 20227.1.1, June 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2commercialOpen Source
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++JavaScript
Server operating systemshostedLinuxWindowsserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyesClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)schema-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.nononono
Secondary indexesnoyesnoyes infovia views
SQL infoSupport of SQLnoSQL-like DML and DDL statementsnono
APIs and other access methodsHTTP APIJDBC
ODBC
.NET Client API
Proprietary client DLL
WinRT client
HTTP REST infoonly for PouchDB Server
JavaScript API
Supported programming languagesJava
Python
All languages supporting JDBC/ODBC.Net
C
C#
C++
VB.Net
JavaScript
Server-side scripts infoStored proceduresnoyes infouser defined functions and integration of map-reduceView functions in JavaScript
Triggersnonono, except callback-events from server when changes happenedyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceShardingProprietary Sharding systemSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceselectable replication factorMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReducenoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic single-row operationsnoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoby using IndexedDB, WebSQL or LevelDB as backend
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nononoyes
User concepts infoAccess controlAccess rights based on subaccounts and tokensAccess rights for users, groups and roles infobased on Apache Sentry and KerberosWindows-Profileno

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More resources
Alibaba Cloud Table StoreApache ImpalaDataFSPouchDB
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