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DBMS > Microsoft Azure Cosmos DB vs. openGemini vs. Oracle Coherence vs. Riak KV vs. Sequoiadb

System Properties Comparison Microsoft Azure Cosmos DB vs. openGemini vs. Oracle Coherence vs. Riak KV vs. Sequoiadb

Editorial information provided by DB-Engines
NameMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonopenGemini  Xexclude from comparisonOracle Coherence  Xexclude from comparisonRiak KV  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionGlobally distributed, horizontally scalable, multi-model database serviceAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityOracles in-memory data grid solutionDistributed, fault tolerant key-value storeNewSQL database with distributed OLTP and SQL
Primary database modelDocument store
Graph DBMS
Key-value store
Wide column store
Time Series DBMSKey-value storeKey-value store infowith links between data sets and object tags for the creation of secondary indexesDocument store
Relational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score27.71
Rank#27  Overall
#4  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Score4.01
Rank#79  Overall
#9  Key-value stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Websiteazure.microsoft.com/­services/­cosmos-dbwww.opengemini.org
github.com/­openGemini
www.oracle.com/­java/­coherencewww.sequoiadb.com
Technical documentationlearn.microsoft.com/­azure/­cosmos-dbdocs.opengemini.org/­guidedocs.oracle.com/­en/­middleware/­standalone/­coherencewww.tiot.jp/­riak-docs/­riak/­kv/­latestwww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperMicrosoftHuawei and openGemini communityOracleOpenSource, formerly Basho TechnologiesSequoiadb Ltd.
Initial release20142022200720092013
Current release1.1, July 202314.1, August 20233.2.0, December 2022
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0commercialOpen Source infoApache version 2, commercial enterprise editionOpen Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoJavaErlangC++
Server operating systemshostedLinux
Windows
All OS with a Java VMLinux
OS X
Linux
Data schemeschema-freeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyes infoJSON typesInteger, Float, Boolean, Stringyesnoyes infooid, date, timestamp, binary, regex
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.nononono
Secondary indexesyes infoAll properties auto-indexed by defaultyesnorestrictedyes
SQL infoSupport of SQLSQL-like query languageSQL-like query languagenonoSQL-like query language
APIs and other access methodsDocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
HTTP RESTJCache
JPA
RESTful HTTP API
HTTP API
Native Erlang Interface
proprietary protocol using JSON
Supported programming languages.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
.Net
C++
Java
C infounofficial client library
C#
C++ infounofficial client library
Clojure infounofficial client library
Dart infounofficial client library
Erlang
Go infounofficial client library
Groovy infounofficial client library
Haskell infounofficial client library
Java
JavaScript infounofficial client library
Lisp infounofficial client library
Perl infounofficial client library
PHP
Python
Ruby
Scala infounofficial client library
Smalltalk infounofficial client library
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresJavaScriptnonoErlangJavaScript
TriggersJavaScriptnoyes infoLive Eventsyes infopre-commit hooks and post-commit hooksno
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceShardingShardingSharding infono "single point of failure"Sharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceyesyes, with selectable consistency levelselectable replication factorSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodswith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*nonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Eventual Consistency
Immediate Consistency
Eventual ConsistencyEventual Consistency
Foreign keys infoReferential integritynononono infolinks between data sets can be storedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataMulti-item ACID transactions with snapshot isolation within a partitionnoconfigurablenoDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionallyyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlAccess rights can be defined down to the item levelAdministrators and common users accountsauthentification to access the cache via certificates or http basic authenticationyes, using Riak Securitysimple password-based access control

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More resources
Microsoft Azure Cosmos DB infoformer name was Azure DocumentDBopenGeminiOracle CoherenceRiak KVSequoiadb
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