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DBMS > BoltDB vs. Cachelot.io vs. Couchbase vs. VelocityDB

System Properties Comparison BoltDB vs. Cachelot.io vs. Couchbase vs. VelocityDB

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Editorial information provided by DB-Engines
NameBoltDB  Xexclude from comparisonCachelot.io  Xexclude from comparisonCouchbase infoOriginally called Membase  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAn embedded key-value store for Go.In-memory caching systemA distributed document store with integrated cache, a powerful search engine, in-built operational and analytical capabilities, and an embedded mobile databaseA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelKey-value storeKey-value storeDocument storeGraph DBMS
Object oriented DBMS
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
Spatial DBMS infousing the Geocouch extension
Search engine
Time Series DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.70
Rank#225  Overall
#31  Key-value stores
Score0.00
Rank#385  Overall
#61  Key-value stores
Score16.74
Rank#33  Overall
#5  Document stores
Score0.00
Rank#385  Overall
#40  Graph DBMS
#21  Object oriented DBMS
Websitegithub.com/­boltdb/­boltcachelot.iowww.couchbase.comvelocitydb.com
Technical documentationdocs.couchbase.comvelocitydb.com/­UserGuide
DeveloperCouchbase, Inc.VelocityDB Inc
Initial release2013201520112011
Current releaseServer: 7.2, June 2023; Mobile: 3.1, March 2022; Couchbase Capella (DBaaS), June 20237.x
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoSimplified BSD LicenseOpen Source infoBusiness Source License (BSL 1.1); Commercial licenses also availablecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoC++C, C++, Go and ErlangC#
Server operating systemsBSD
Linux
OS X
Solaris
Windows
FreeBSD
Linux
OS X
Linux
OS X
Windows
Any that supports .NET
Data schemeschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenonoyesyes
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.nonono
Secondary indexesnonoyesyes
SQL infoSupport of SQLnonoSQL++, extends ANSI SQL to JSON for operational, transactional, and analytic use casesno
APIs and other access methodsMemcached protocolCLI Client
HTTP REST
Kafka Connector
Native language bindings for CRUD, Query, Search and Analytics APIs
Spark Connector
Spring Data
.Net
Supported programming languagesGo.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
.Net
C
Go
Java
JavaScript infoNode.js
Kotlin
PHP
Python
Ruby
Scala
.Net
Server-side scripts infoStored proceduresnonoFunctions and timers in JavaScript and UDFs in Java, Python, SQL++no
Triggersnonoyes infovia the TAP protocolCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenoneAutomatic ShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneMulti-source replication infoincluding cross data center replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnonenoneEventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoEphemeral bucketsyes
User concepts infoAccess controlnonoUser and Administrator separation with password-based and LDAP integrated Authentication. Role-base access control.Based on Windows Authentication

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More resources
BoltDBCachelot.ioCouchbase infoOriginally called MembaseVelocityDB
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