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DBMS > AlaSQL vs. Apache Jena - TDB vs. etcd vs. Firebase Realtime Database

System Properties Comparison AlaSQL vs. Apache Jena - TDB vs. etcd vs. Firebase Realtime Database

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonApache Jena - TDB  Xexclude from comparisonetcd  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparison
DescriptionJavaScript DBMS libraryA RDF storage and query DBMS, shipped as an optional-use component of the Apache Jena frameworkA distributed reliable key-value storeCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.
Primary database modelDocument store
Relational DBMS
RDF storeKey-value storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#260  Overall
#40  Document stores
#121  Relational DBMS
Score3.75
Rank#84  Overall
#3  RDF stores
Score7.25
Rank#54  Overall
#5  Key-value stores
Score14.29
Rank#39  Overall
#6  Document stores
Websitealasql.orgjena.apache.org/­documentation/­tdb/­index.htmletcd.io
github.com/­etcd-io/­etcd
firebase.google.com/­products/­realtime-database
Technical documentationgithub.com/­AlaSQL/­alasqljena.apache.org/­documentation/­tdb/­index.htmletcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
firebase.google.com/­docs/­database
DeveloperAndrey Gershun & Mathias R. WulffApache Software Foundation infooriginally developed by HP LabsGoogle infoacquired by Google 2014
Initial release201420002012
Current release4.9.0, July 20233.4, August 2019
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache License, Version 2.0Open Source infoApache Version 2.0commercial
Cloud-based only infoOnly available as a cloud servicenononoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJavaGo
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VMFreeBSD
Linux
Windows infoexperimental
hosted
Data schemeschema-freeyes infoRDF Schemasschema-freeschema-free
Typing infopredefined data types such as float or datenoyesnoyes
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.nonono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nonono
APIs and other access methodsJavaScript APIFuseki infoREST-style SPARQL HTTP Interface
Jena RDF API
RIO infoRDF Input/Output
gRPC
JSON over HTTP
Android
iOS
JavaScript API
RESTful HTTP API
Supported programming languagesJavaScriptJava.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
Java
JavaScript
Objective-C
Server-side scripts infoStored proceduresnoyesnolimited functionality with using 'rules'
Triggersyesyes infovia event handleryes, watching key changesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACID infoTDB Transactionsnoyes
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnoAccess control via Jena Securitynoyes, based on authentication and database rules

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More resources
AlaSQLApache Jena - TDBetcdFirebase Realtime Database
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