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DBMS > Amazon Aurora vs. KeyDB vs. NebulaGraph vs. OpenMLDB

System Properties Comparison Amazon Aurora vs. KeyDB vs. NebulaGraph vs. OpenMLDB

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Editorial information provided by DB-Engines
NameAmazon Aurora  Xexclude from comparisonKeyDB  Xexclude from comparisonNebulaGraph  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionMySQL and PostgreSQL compatible cloud service by AmazonAn ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocolsA distributed, linear scalable, high perfomant Graph DBMSAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelRelational DBMSKey-value storeGraph DBMSTime Series DBMS
Secondary database modelsDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.91
Rank#50  Overall
#32  Relational DBMS
Score0.71
Rank#226  Overall
#33  Key-value stores
Score2.14
Rank#120  Overall
#10  Graph DBMS
Score0.02
Rank#367  Overall
#37  Time Series DBMS
Websiteaws.amazon.com/­rds/­auroragithub.com/­Snapchat/­KeyDB
keydb.dev
github.com/­vesoft-inc/­nebula
www.nebula-graph.io
openmldb.ai
Technical documentationdocs.aws.amazon.com/­AmazonRDS/­latest/­AuroraUserGuide/­CHAP_Aurora.htmldocs.keydb.devdocs.nebula-graph.ioopenmldb.ai/­docs/­zh/­main
DeveloperAmazonEQ Alpha Technology Ltd.Vesoft Inc.4 Paradigm Inc.
Initial release2015201920192020
Current release2024-2 February 2024
License infoCommercial or Open SourcecommercialOpen Source infoBSD-3Open Source infoApache Version 2.0 + Common Clause 1.0Open Source
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C++C++, Java, Scala
Server operating systemshostedLinuxLinuxLinux
Data schemeyesschema-freeStrong typed schemaFixed schema
Typing infopredefined data types such as float or dateyespartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexesyesyes
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.yesnonono
Secondary indexesyesyes infoby using the Redis Search moduleyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.yes
SQL infoSupport of SQLyesnoSQL-like query languageyes
APIs and other access methodsADO.NET
JDBC
ODBC
Proprietary protocol infoRESP - REdis Serialization ProtocoBrowser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
JDBC
SQLAlchemy
Supported programming languagesAda
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
C
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic
.Net
C++
Go
Java
PHP
Python
C++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresyesLuauser defined functionsno
Triggersyesnono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardingShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationMulti-source replication
Source-replica replication
Causal Clustering using Raft protocolSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Strong eventual consistency with CRDTs
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDOptimistic locking, atomic execution of commands blocks and scriptsACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsyes infousing RocksDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardsimple password-based access control and ACLRole-based access controlfine grained access rights according to SQL-standard
More information provided by the system vendor
Amazon AuroraKeyDBNebulaGraphOpenMLDB
Specific characteristicsNebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantagesNebulaGraph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersCompanies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricsAt our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsNebulaGraph is open source and free to use under Apache 2.0 license.
» more

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More resources
Amazon AuroraKeyDBNebulaGraphOpenMLDB
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