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DBMS > AllegroGraph vs. QuestDB

System Properties Comparison AllegroGraph vs. QuestDB

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Our visitors often compare AllegroGraph and QuestDB with Neo4j, PostgreSQL and Microsoft SQL Server.

Editorial information provided by DB-Engines
NameAllegroGraph  Xexclude from comparisonQuestDB  Xexclude from comparison
DescriptionHigh performance, persistent RDF store with additional support for Graph DBMSA high performance, low latency Time Series DBMS
Primary database modelDocument store infowith version 6.5
Graph DBMS
RDF store
Time Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.92
Rank#165  Overall
#24  Document stores
#14  Graph DBMS
#7  RDF stores
Score0.20
Rank#272  Overall
#21  Time Series DBMS
Websiteallegrograph.comwww.questdb.io
Technical documentationfranz.com/­agraph/­support/­documentation/­current/­agraph-introduction.htmlwww.questdb.io/­docs/­documentationOverview
DeveloperFranz Inc.QuestDB Limited
Initial release20042014
Current release7.0, April 2020
License infoCommercial or Open Sourcecommercial infoLimited community edition freeOpen Source infoAGPL 3.0
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava
Server operating systemsLinux
OS X
Windows
Linux
macOS
Windows
Data schemeyes infoRDF schemasyes
Typing infopredefined data types such as float or dateyesyes
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.no infobulk load of XML files possibleno
Secondary indexesyesno
SQL infoSupport of SQLSPARQL is used as query languageSQL-like query language
APIs and other access methodsRESTful HTTP API
SPARQL
HTTP REST
Supported programming languagesC#
Clojure
Java
Lisp
Perl
Python
Ruby
Scala
Java
Server-side scripts infoStored proceduresyes infoJavaScript or Common Lispno
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodeswith Federationhorizontal partitioning (by timestamps)
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replication
Multi-master replication
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency or Eventual Consistency depending on configurationImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID for single-table writes
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlUsers with fine-grained authorization concept, user roles and pluggable authentication
More information provided by the system vendor
AllegroGraphQuestDB
Specific characteristicsKnowledge Graph Platform Leader FedShard - Designed for Entity-Event Knowledge Graph...
» more
Competitive advantagesAllegroGraph is uniquely suited to support adhoc queries through SPARQL, Prolog and...
» more
News

AllegroGraph Named to 100 Companies That Matter Most in Data
22 June 2020

Bloor Research Covers AllegroGraph with FedShard
5 June 2020

AllegroGraph Tutorial – Distributed Repository Using Shards and Federation Setup
25 May 2020

Advanced Knowledge Graph Visualization with New Gruff v8
12 May 2020

Ubiquitous AI Demands A New Type Of Database Sharding
5 May 2020

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
AllegroGraphQuestDB
Recent citations in the news

AllegroGraph Named to 100 Companies That Matter Most in Data
23 June 2020, PR Web

Data Summit Connect 2020 Drills Down on Better Data Processes With Knowledge Graphs
10 June 2020, Database Trends and Applications

Ubiquitous AI Demands A New Type Of Database Sharding
1 May 2020, Forbes

AllegroGraph v7 Powers First Distributed Semantic Knowledge Graph Solution with Federated-Sharding
26 May 2020, Business Wire

Three Necessities For Maximizing Your Digital Twins Approach
4 November 2019, Forbes

provided by Google News

QuestDB nabs $2.3M seed to build open source time series database
2 July 2020, TechCrunch

Recent Funding Rounds
12 October 2017, Crunchbase News

Grab hires Peter Oey as its chief financial officer
1 April 2020, Yahoo News Australia

Funding Rounds This Week
12 October 2017, Crunchbase News

Oriente raises $50 million to continue building its infrastructure for digital financial services
27 April 2020, Yahoo News Australia

provided by Google News

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