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DBMS > OpenQM vs. Snowflake

System Properties Comparison OpenQM vs. Snowflake

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Editorial information provided by DB-Engines
NameOpenQM infoalso called QM  Xexclude from comparisonSnowflake  Xexclude from comparison
DescriptionQpenQM is a high-performance, self-tuning, multi-value DBMSCloud-based data warehousing service for structured and semi-structured data
Primary database modelMultivalue DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.33
Rank#286  Overall
#10  Multivalue DBMS
Score123.20
Rank#9  Overall
#6  Relational DBMS
Websitewww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmwww.snowflake.com
Technical documentationdocs.snowflake.net/­manuals/­index.html
DeveloperRocket Software, originally Martin PhillipsSnowflake Computing Inc.
Initial release19932014
Current release3.4-12
License infoCommercial or Open SourceOpen Source infoGPLv2, extended commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

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Server operating systemsAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
hosted
Data schemeyes infowith some exceptionsyes infosupport of semi-structured data formats (JSON, XML, Avro)
Typing infopredefined data types such as float or dateyes
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.yesyes
Secondary indexesyes
SQL infoSupport of SQLnoyes
APIs and other access methodsCLI Client
JDBC
ODBC
Supported programming languages.Net
Basic
C
Java
Objective C
PHP
Python
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresyesuser defined functions
Triggersyesno infosimilar concept for controling cloud resources
Partitioning methods infoMethods for storing different data on different nodesyesyes
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess rights can be defined down to the item levelUsers with fine-grained authorization concept, user roles and pluggable authentication

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More resources
OpenQM infoalso called QMSnowflake
DB-Engines blog posts

Snowflake is the DBMS of the Year 2022, defending the title from last year
3 January 2023, Matthias Gelbmann, Paul Andlinger

Snowflake is the DBMS of the Year 2021
3 January 2022, Paul Andlinger, Matthias Gelbmann

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