DBMS > Dgraph vs. Trafodion
System Properties Comparison Dgraph vs. Trafodion
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|Editorial information provided by DB-Engines|
|Name||Dgraph Xexclude from comparison||Trafodion Xexclude from comparison|
|Description||Distributed and scalable native Graph DBMS||Transactional SQL-on-Hadoop DBMS|
|Primary database model||Graph DBMS||Relational DBMS|
|Developer||Dgraph Labs, Inc.||Apache Software Foundation, originally developed by HP|
|Current release||2.3.0, February 2019|
|License Commercial or Open Source||Open Source Apache 2.0||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||Go||C++, Java|
|Server operating systems||Linux|
|Typing predefined data types such as float or date||yes||yes|
|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||no|
|SQL Support of SQL||no||yes|
|APIs and other access methods||GraphQL query language|
gRPC (using protocol buffers) API
|Supported programming languages||C#|
|All languages supporting JDBC/ODBC/ADO.Net|
|Server-side scripts Stored procedures||no||Java Stored Procedures|
|Partitioning methods Methods for storing different data on different nodes||yes||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Synchronous replication via Raft||yes, via HBase|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes via user defined functions and HBase|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes|
|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|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||no Planned for future releases||fine grained access rights according to SQL-standard|
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