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DBMS > Heroic vs. IBM Cloudant vs. SurrealDB vs. VelocityDB

System Properties Comparison Heroic vs. IBM Cloudant vs. SurrealDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameHeroic  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonSurrealDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionTime Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearchDatabase as a Service offering based on Apache CouchDBA fully ACID transactional, developer-friendly, multi-model DBMSA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSDocument storeDocument store
Graph DBMS
Graph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#265  Overall
#22  Time Series DBMS
Score2.75
Rank#104  Overall
#19  Document stores
Score1.02
Rank#190  Overall
#33  Document stores
#18  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#16  Object oriented DBMS
Websitegithub.com/­spotify/­heroicwww.ibm.com/­products/­cloudantsurrealdb.comvelocitydb.com
Technical documentationspotify.github.io/­heroiccloud.ibm.com/­docs/­Cloudantsurrealdb.com/­docsvelocitydb.com/­UserGuide
DeveloperSpotifyIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014SurrealDB LtdVelocityDB Inc
Initial release2014201020222011
Current releasev1.5.0, May 20247.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen 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 languageJavaErlangRustC#
Server operating systemshostedLinux
macOS
Windows
Any that supports .NET
Data schemeschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyesnoyesyes
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 indexesyes infovia Elasticsearchyesyes
SQL infoSupport of SQLnonoSQL-like query languageno
APIs and other access methodsHQL (Heroic Query Language, a JSON-based language)
HTTP API
RESTful HTTP/JSON APIGraphQL
RESTful HTTP API
WebSocket
.Net
Supported programming languagesC#
Java
JavaScript
Objective-C
PHP
Ruby
Deno
Go
JavaScript (Node.js)
Rust
.Net
Server-side scripts infoStored proceduresnoView functions (Map-Reduce) in JavaScriptno
TriggersnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Eventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a document possibleACIDACID
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 controlAccess rights for users can be defined per databaseyes, based on authentication and database rulesBased on Windows Authentication

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More resources
HeroicIBM CloudantSurrealDBVelocityDB
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