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DBMS > KairosDB vs. MarkLogic vs. PouchDB vs. VelocityDB

System Properties Comparison KairosDB vs. MarkLogic vs. PouchDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonMarkLogic  Xexclude from comparisonPouchDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2Operational and transactional Enterprise NoSQL databaseJavaScript DBMS with an API inspired by CouchDBA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSDocument store
Native XML DBMS
RDF store infoas of version 7
Search engine
Document storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score5.18
Rank#63  Overall
#11  Document stores
#1  Native XML DBMS
#1  RDF stores
#7  Search engines
Score2.34
Rank#112  Overall
#21  Document stores
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­kairosdb/­kairosdbwww.marklogic.compouchdb.comvelocitydb.com
Technical documentationkairosdb.github.iodocs.marklogic.compouchdb.com/­guidesvelocitydb.com/­UserGuide
DeveloperMarkLogic Corp.Apache Software FoundationVelocityDB Inc
Initial release2013200120122011
Current release1.2.2, November 201811.0, December 20227.1.1, June 20197.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial inforestricted free version is availableOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++JavaScriptC#
Server operating systemsLinux
OS X
Windows
Linux
OS X
Windows
server-less, requires a JavaScript environment (browser, Node.js)Any that supports .NET
Data schemeschema-freeschema-free infoSchema can be enforcedschema-freeyes
Typing infopredefined data types such as float or dateyesyesnoyes
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.noyesnono
Secondary indexesnoyesyes infovia viewsyes
SQL infoSupport of SQLnoyes infoSQL92nono
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
Java API
Node.js Client API
ODBC
proprietary Optic API infoProprietary Query API, introduced with version 9
RESTful HTTP API
SPARQL
WebDAV
XDBC
XQuery
XSLT
HTTP REST infoonly for PouchDB Server
JavaScript API
.Net
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
C
C#
C++
Java
JavaScript (Node.js)
Perl
PHP
Python
Ruby
JavaScript.Net
Server-side scripts infoStored proceduresnoyes infovia XQuery or JavaScriptView functions in JavaScriptno
TriggersnoyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraShardingSharding infowith a proxy-based framework, named couchdb-loungeSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandrayesMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infovia Hadoop Connector, HDFS Direct Access and in-database MapReduce jobsyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID infocan act as a resource manager in an XA/JTA transactionnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infoby using IndexedDB, WebSQL or LevelDB as backendyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes, with Range Indexesyesyes
User concepts infoAccess controlsimple password-based access controlRole-based access control at the document and subdocument levelsnoBased on Windows Authentication

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More resources
KairosDBMarkLogicPouchDBVelocityDB
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