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DBMS > Snowflake vs. SQL.JS vs. VelocityDB

System Properties Comparison Snowflake vs. SQL.JS vs. VelocityDB

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Editorial information provided by DB-Engines
NameSnowflake  Xexclude from comparisonSQL.JS  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionCloud-based data warehousing service for structured and semi-structured dataPort of SQLite to JavaScriptA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSRelational DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score161.78
Rank#6  Overall
#5  Relational DBMS
Score0.53
Rank#241  Overall
#113  Relational DBMS
Score0.03
Rank#368  Overall
#39  Graph DBMS
#17  Object oriented DBMS
Websitewww.snowflake.comsql.js.orgvelocitydb.com
Technical documentationdocs.snowflake.net/­manuals/­index.htmlsql.js.org/­documentation/­index.htmlvelocitydb.com/­UserGuide
DeveloperSnowflake Computing Inc.Alon Zakai infoenhancements implemented by othersVelocityDB Inc
Initial release201420122011
Current release7.x
License infoCommercial or Open SourcecommercialOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptC#
Server operating systemshostedserver-less, requires a JavaScript environment (browser, Node.js)Any that supports .NET
Data schemeyes infosupport of semi-structured data formats (JSON, XML, Avro)yesyes
Typing infopredefined data types such as float or dateyesyesyes
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.yesnono
Secondary indexesyes
SQL infoSupport of SQLyesyes infoSQL-92 is not fully supportedno
APIs and other access methodsCLI Client
JDBC
ODBC
JavaScript API.Net
Supported programming languagesJavaScript (Node.js)
Python
JavaScript.Net
Server-side scripts infoStored proceduresuser defined functionsnono
Triggersno infosimilar concept for controling cloud resourcesnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesyesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesno infoexcept by serializing a db to a fileyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlUsers with fine-grained authorization concept, user roles and pluggable authenticationnoBased on Windows Authentication

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More resources
SnowflakeSQL.JSVelocityDB
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