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DBMS > LeanXcale vs. LokiJS vs. Microsoft Azure Cosmos DB vs. Sequoiadb vs. Valentina Server

System Properties Comparison LeanXcale vs. LokiJS vs. Microsoft Azure Cosmos DB vs. Sequoiadb vs. Valentina Server

Editorial information provided by DB-Engines
NameLeanXcale  Xexclude from comparisonLokiJS  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonSequoiadb  Xexclude from comparisonValentina Server  Xexclude from comparison
DescriptionA highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilitiesIn-memory JavaScript DBMSGlobally distributed, horizontally scalable, multi-model database serviceNewSQL database with distributed OLTP and SQLObject-relational database and reports server
Primary database modelKey-value store
Relational DBMS
Document storeDocument store
Graph DBMS
Key-value store
Wide column store
Document store
Relational DBMS
Relational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.36
Rank#280  Overall
#40  Key-value stores
#129  Relational DBMS
Score0.49
Rank#260  Overall
#42  Document stores
Score27.71
Rank#27  Overall
#4  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Score0.21
Rank#325  Overall
#144  Relational DBMS
Websitewww.leanxcale.comgithub.com/­techfort/­LokiJSazure.microsoft.com/­services/­cosmos-dbwww.sequoiadb.comwww.valentina-db.net
Technical documentationtechfort.github.io/­LokiJSlearn.microsoft.com/­azure/­cosmos-dbwww.sequoiadb.com/­en/­index.php?m=Files&a=indexvalentina-db.com/­docs/­dokuwiki/­v5/­doku.php
DeveloperLeanXcaleMicrosoftSequoiadb Ltd.Paradigma Software
Initial release20152014201420131999
Current release5.7.5
License infoCommercial or Open SourcecommercialOpen SourcecommercialOpen Source infoServer: AGPL; Client: Apache V2commercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptC++
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)hostedLinuxLinux
OS X
Windows
Data schemeyesschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenoyes infoJSON typesyes infooid, date, timestamp, binary, regexyes
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.nono
Secondary indexesyes infovia viewsyes infoAll properties auto-indexed by defaultyesyes
SQL infoSupport of SQLyes infothrough Apache DerbynoSQL-like query languageSQL-like query languageyes
APIs and other access methodsJDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector
JavaScript APIDocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
proprietary protocol using JSONODBC
Supported programming languagesC
Java
Scala
JavaScript.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
.Net
C++
Java
PHP
Python
.Net
C
C#
C++
Objective-C
PHP
Ruby
Visual Basic
Visual Basic.NET
Server-side scripts infoStored proceduresView functions in JavaScriptJavaScriptJavaScriptyes
TriggersyesJavaScriptnoyes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoImplicit feature of the cloud serviceSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoImplicit feature of the cloud serviceSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyeswith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*nono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Eventual Consistency
Foreign keys infoReferential integrityyesnononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a single collection possibleMulti-item ACID transactions with snapshot isolation within a partitionDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesnoyes
User concepts infoAccess controlnoAccess rights can be defined down to the item levelsimple password-based access controlfine grained access rights according to SQL-standard

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More resources
LeanXcaleLokiJSMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDBSequoiadbValentina Server
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