DBMS > Blazegraph vs. OpenQM
System Properties Comparison Blazegraph vs. OpenQM
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|Editorial information provided by DB-Engines|
|Name||Blazegraph Xexclude from comparison||OpenQM also called QM Xexclude from comparison|
|Amazon has acquired Blazegraph's domain and (probably) product. It is said that Amazon Neptune is based on Blazegraph.|
|Description||High-performance graph database supporting Semantic Web (RDF/SPARQL) and Graph Database (tinkerpop3, blueprints, vertex-centric) APIs with scale-out and High Availability.||QpenQM is a high-performance, self-tuning, multi-value DBMS|
|Primary database model||Graph DBMS|
|Current release||2.1.5, March 2019||3.4-12|
|License Commercial or Open Source||Open Source extended commercial license available||Open Source GPLv2, extended commercial license available|
|Cloud-based only Only available as a cloud service||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|Data scheme||schema-free||yes with some exceptions|
|Typing predefined data types such as float or date||yes RDF literal types|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||yes|
|SQL Support of SQL||SPARQL is used as query language||no|
|APIs and other access methods||Java API|
RESTful HTTP API
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency or Eventual Consistency depending on configuration||Immediate Consistency|
|Foreign keys Referential integrity||yes Relationships in Graphs||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|User concepts Access control||Security and Authentication via Web Application Container (Tomcat, Jetty)||Access rights can be defined down to the item level|
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|Blazegraph||OpenQM also called QM|
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