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DBMS > EJDB vs. Hyprcubd vs. SQL.JS vs. STSdb vs. VelocityDB

System Properties Comparison EJDB vs. Hyprcubd vs. SQL.JS vs. STSdb vs. VelocityDB

Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonHyprcubd  Xexclude from comparisonSQL.JS  Xexclude from comparisonSTSdb  Xexclude from comparisonVelocityDB  Xexclude from comparison
Hyprcubd seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Serverless Time Series DBMSPort of SQLite to JavaScriptKey-Value Store with special method for indexing infooptimized for high performance using a special indexing methodA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument storeTime Series DBMSRelational DBMSKey-value storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#296  Overall
#44  Document stores
Score0.63
Rank#241  Overall
#112  Relational DBMS
Score0.10
Rank#357  Overall
#51  Key-value stores
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­Softmotions/­ejdbhyprcubd.com (offline)sql.js.orggithub.com/­STSSoft/­STSdb4velocitydb.com
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdsql.js.org/­documentation/­index.htmlvelocitydb.com/­UserGuide
DeveloperSoftmotionsHyprcubd, Inc.Alon Zakai infoenhancements implemented by othersSTS Soft SCVelocityDB Inc
Initial release2012201220112011
Current release4.0.8, September 20157.x
License infoCommercial or Open SourceOpen Source infoGPLv2commercialOpen SourceOpen Source infoGPLv2, commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCGoJavaScriptC#C#
Server operating systemsserver-lesshostedserver-less, requires a JavaScript environment (browser, Node.js)WindowsAny that supports .NET
Data schemeschema-freeyesyesyesyes
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyes infotime, int, uint, float, stringyesyes infoprimitive types and user defined types (classes)yes
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 indexesnononoyes
SQL infoSupport of SQLnoSQL-like query languageyes infoSQL-92 is not fully supportednono
APIs and other access methodsin-process shared librarygRPC (https)JavaScript API.NET Client API.Net
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
JavaScriptC#
Java
.Net
Server-side scripts infoStored proceduresnonononono
TriggersnonononoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencynoneImmediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingnoyesyes
Durability infoSupport for making data persistentyesyesno infoexcept by serializing a db to a fileyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlnotoken accessnonoBased on Windows Authentication

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More resources
EJDBHyprcubdSQL.JSSTSdbVelocityDB
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