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DBMS > CockroachDB vs. IBM Cloudant vs. Riak TS vs. VelocityDB

System Properties Comparison CockroachDB vs. IBM Cloudant vs. Riak TS vs. VelocityDB

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonRiak TS  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.Database as a Service offering based on Apache CouchDBRiak TS is a distributed NoSQL database optimized for time series data and based on Riak KVA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSDocument storeTime Series DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score5.73
Rank#58  Overall
#34  Relational DBMS
Score2.75
Rank#104  Overall
#19  Document stores
Score0.28
Rank#307  Overall
#27  Time Series DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#16  Object oriented DBMS
Websitewww.cockroachlabs.comwww.ibm.com/­products/­cloudantvelocitydb.com
Technical documentationwww.cockroachlabs.com/­docscloud.ibm.com/­docs/­Cloudantwww.tiot.jp/­riak-docs/­riak/­ts/­latestvelocitydb.com/­UserGuide
DeveloperCockroach LabsIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014Open Source, formerly Basho TechnologiesVelocityDB Inc
Initial release2015201020152011
Current release24.1.0, May 20243.0.0, September 20227.x
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availablecommercialOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoErlangErlangC#
Server operating systemsLinux
macOS
Windows
hostedLinux
OS X
Any that supports .NET
Data schemedynamic schemaschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyesnonoyes
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 indexesyesyesrestrictedyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLnoyes, limitedno
APIs and other access methodsJDBCRESTful HTTP/JSON APIHTTP API
Native Erlang Interface
.Net
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
C#
Java
JavaScript
Objective-C
PHP
Ruby
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
Server-side scripts infoStored proceduresnoView functions (Map-Reduce) in JavaScriptErlangno
Triggersnoyesyes infopre-commit hooks and post-commit hooksCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTMulti-source replication
Source-replica replication
selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnono infolinks between datasets can be storedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a document possiblenoACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoOptimistic lockingyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlRole-based access controlAccess rights for users can be defined per databasenoBased on Windows Authentication

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More resources
CockroachDBIBM CloudantRiak TSVelocityDB
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