DBMS > Dgraph vs. Microsoft SQL Server vs. Oracle NoSQL
System Properties Comparison Dgraph vs. Microsoft SQL Server vs. Oracle NoSQL
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|Editorial information provided by DB-Engines|
|Name||Dgraph Xexclude from comparison||Microsoft SQL Server Xexclude from comparison||Oracle NoSQL Xexclude from comparison|
|Description||Distributed and scalable native Graph DBMS||Microsofts flagship relational DBMS||A multi-model, scalable, distributed NoSQL database, designed to provide highly reliable, flexible, and available data management across a configurable set of storage nodes|
|Primary database model||Graph DBMS||Relational DBMS||Document store|
|Secondary database models||Document store|
|Developer||Dgraph Labs, Inc.||Microsoft||Oracle|
|Current release||SQL Server 2019, November 2019||22.1, May 2022|
|License Commercial or Open Source||Open Source Apache 2.0||commercial restricted free version is available||Open Source Proprietary for Enterprise Edition (Oracle Database EE license has Oracle NoSQL database EE covered: details)|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|Data scheme||schema-free||yes||Support Fixed schema and Schema-less deployment with the ability to interoperate between them.|
|Typing predefined data types such as float or date||yes||yes||optional|
|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||yes||no|
|SQL Support of SQL||no||yes||SQL-like DML and DDL statements|
|APIs and other access methods||GraphQL query language|
gRPC (using protocol buffers) API
Tabular Data Stream (TDS)
|RESTful HTTP API|
|Supported programming languages||C#|
|Server-side scripts Stored procedures||no||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java||no|
|Partitioning methods Methods for storing different data on different nodes||yes||tables can be distributed across several files (horizontal partitioning); sharding through federation||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Synchronous replication via Raft||yes, but depending on the SQL-Server Edition||Electable source-replica replication per shard. Support distributed global deployment with Multi-region table feature|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||with Hadoop integration|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Eventual Consistency|
Immediate Consistency depending on configuration
|Foreign keys Referential integrity||no||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||configurable ACID within a storage node (=shard)|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes off heap cache|
|User concepts Access control||no Planned for future releases||fine grained access rights according to SQL-standard||Access rights for users and roles|
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|Dgraph||Microsoft SQL Server||Oracle NoSQL|
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