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DBMS > AlaSQL vs. TerminusDB vs. VelocityDB

System Properties Comparison AlaSQL vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument store
Relational DBMS
Graph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.39
Rank#218  Overall
#31  Document stores
#105  Relational DBMS
Score0.02
Rank#342  Overall
#32  Graph DBMS
Score0.07
Rank#311  Overall
#30  Graph DBMS
#16  Object oriented DBMS
Websitealasql.orgterminusdb.comvelocitydb.com
Technical documentationgithub.com/­agershun/­alasqlterminusdb.com/­docsvelocitydb.com/­UserGuide
DeveloperAndrey Gershun & Mathias R. WulffDataChemist Ltd.VelocityDB Inc
Initial release201420182011
Current release1.0, 20187.x
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptProlog, RustC#
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)LinuxAny that supports .NET
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyes
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 indexesnoyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL-like query language (WOQL)no
APIs and other access methodsJavaScript APIOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesJavaScriptJavaScript
Python
.Net
Server-side scripts infoStored proceduresnoyesno
TriggersyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnoRole-based access controlBased on Windows Authentication

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More resources
AlaSQLTerminusDB infoformer name was DataChemistVelocityDB
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