DBMS > AllegroGraph vs. EJDB
System Properties Comparison AllegroGraph vs. EJDB
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|Editorial information provided by DB-Engines|
|Name||AllegroGraph Xexclude from comparison||EJDB Xexclude from comparison|
|Description||High performance, persistent RDF store with additional support for Graph DBMS||Embeddable document-store database library with JSON representation of queries (in MongoDB style)|
|Primary database model||Document store with version 6.5|
|Secondary database models||Spatial DBMS|
|Current release||7.3.1, December 2022|
|License Commercial or Open Source||commercial Limited community edition free||Open Source GPLv2|
|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||yes RDF schemas||schema-free|
|Typing predefined data types such as float or date||yes||yes string, integer, double, bool, date, object_id|
|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.||no bulk load of XML files possible|
|SQL Support of SQL||SPARQL is used as query language||no|
|APIs and other access methods||RESTful HTTP API|
|in-process shared library|
|Supported programming languages||C#|
|Partitioning methods Methods for storing different data on different nodes||with Federation||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication|
|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|
|Foreign keys Referential integrity||no||no typically not needed, however similar functionality with collection joins possible|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no|
|Concurrency Support for concurrent manipulation of data||yes||yes Read/Write Locking|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||Users with fine-grained authorization concept, user roles and pluggable authentication||no|
|More information provided by the system vendor|
|Specific characteristics||Knowledge Graph Platform Leader FedShard - Designed for Entity-Event Knowledge Graph...|
|Competitive advantages||AllegroGraph is uniquely suited to support adhoc queries through SPARQL, Prolog and...|
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