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DBMS > Blazegraph vs. PlanetScale vs. VoltDB vs. XTDB

System Properties Comparison Blazegraph vs. PlanetScale vs. VoltDB vs. XTDB

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Editorial information provided by DB-Engines
NameBlazegraph  Xexclude from comparisonPlanetScale  Xexclude from comparisonVoltDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
Amazon has acquired Blazegraph's domain and (probably) product. It is said that Amazon Neptune is based on Blazegraph.
DescriptionHigh-performance graph database supporting Semantic Web (RDF/SPARQL) and Graph Database (tinkerpop3, blueprints, vertex-centric) APIs with scale-out and High Availability.Scalable, distributed, serverless MySQL database platform built on top of VitessDistributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memoryA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelGraph DBMS
RDF store
Relational DBMSRelational DBMSDocument store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.81
Rank#213  Overall
#19  Graph DBMS
#8  RDF stores
Score1.49
Rank#155  Overall
#72  Relational DBMS
Score1.47
Rank#157  Overall
#73  Relational DBMS
Score0.18
Rank#332  Overall
#46  Document stores
Websiteblazegraph.complanetscale.comwww.voltdb.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationwiki.blazegraph.complanetscale.com/­docsdocs.voltdb.comwww.xtdb.com/­docs
DeveloperBlazegraphPlanetScaleVoltDB Inc.Juxt Ltd.
Initial release2006202020102019
Current release2.1.5, March 201911.3, April 20221.19, September 2021
License infoCommercial or Open SourceOpen Source infoextended commercial license availablecommercialOpen Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro EditionsOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaGoJava, C++Clojure
Server operating systemsLinux
OS X
Windows
Docker
Linux
macOS
Linux
OS X infofor development
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeyesyesschema-free
Typing infopredefined data types such as float or dateyes infoRDF literal typesyesyesyes, extensible-data-notation format
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
Secondary indexesyesyesyesyes
SQL infoSupport of SQLSPARQL is used as query languageyes infowith proprietary extensionsyes infoonly a subset of SQL 99limited SQL, making use of Apache Calcite
APIs and other access methodsJava API
RESTful HTTP API
SPARQL QUERY
SPARQL UPDATE
TinkerPop 3
ADO.NET
JDBC
MySQL protocol
ODBC
Java API
JDBC
RESTful HTTP/JSON API
HTTP REST
JDBC
Supported programming languages.Net
C
C++
Java
JavaScript
PHP
Python
Ruby
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Clojure
Java
Server-side scripts infoStored proceduresyesyes infoproprietary syntaxJavano
Triggersnoyesnono
Partitioning methods infoMethods for storing different data on different nodesShardingShardingShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replication
Source-replica replication
Multi-source replication
Source-replica replication
yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency or Eventual Consistency depending on configurationEventual Consistency across shards
Immediate Consistency within a shard
Foreign keys infoReferential integrityyes infoRelationships in Graphsyes infonot for MyISAM storage engineno infoFOREIGN KEY constraints are not supportedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID at shard levelACID infoTransactions are executed single-threaded within stored proceduresACID
Concurrency infoSupport for concurrent manipulation of datayesyes infotable locks or row locks depending on storage engineyes infoData access is serialized by the serveryes
Durability infoSupport for making data persistentyesyesyes infoSnapshots and command loggingyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlSecurity and Authentication via Web Application Container (Tomcat, Jetty)Users with fine-grained authorization concept infono user groups or rolesUsers and roles with access to stored procedures

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More resources
BlazegraphPlanetScaleVoltDBXTDB infoformerly named Crux
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