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DBMS > Postgres-XL vs. Snowflake vs. Splunk vs. SQL.JS

System Properties Comparison Postgres-XL vs. Snowflake vs. Splunk vs. SQL.JS

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Editorial information provided by DB-Engines
NamePostgres-XL  Xexclude from comparisonSnowflake  Xexclude from comparisonSplunk  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresCloud-based data warehousing service for structured and semi-structured dataAnalytics Platform for Big DataPort of SQLite to JavaScript
Primary database modelRelational DBMSRelational DBMSSearch engineRelational DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.53
Rank#254  Overall
#117  Relational DBMS
Score130.36
Rank#8  Overall
#5  Relational DBMS
Score89.10
Rank#14  Overall
#2  Search engines
Score0.63
Rank#241  Overall
#112  Relational DBMS
Websitewww.postgres-xl.orgwww.snowflake.comwww.splunk.comsql.js.org
Technical documentationwww.postgres-xl.org/­documentationdocs.snowflake.net/­manuals/­index.htmldocs.splunk.com/­Documentation/­Splunksql.js.org/­documentation/­index.html
DeveloperSnowflake Computing Inc.Splunk Inc.Alon Zakai infoenhancements implemented by others
Initial release2014 infosince 2012, originally named StormDB201420032012
Current release10 R1, October 2018
License infoCommercial or Open SourceOpen Source infoMozilla public licensecommercialcommercial infoLimited free edition and free developer edition availableOpen Source
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJavaScript
Server operating systemsLinux
macOS
hostedLinux
OS X
Solaris
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesyes infosupport of semi-structured data formats (JSON, XML, Avro)yesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.yes infoXML type, but no XML query functionalityyesyesno
Secondary indexesyesyes
SQL infoSupport of SQLyes infodistributed, parallel query executionyesno infoSplunk Search Processing Language for search commandsyes infoSQL-92 is not fully supported
APIs and other access methodsADO.NET
JDBC
native C library
ODBC
streaming API for large objects
CLI Client
JDBC
ODBC
HTTP RESTJavaScript API
Supported programming languages.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
JavaScript (Node.js)
Python
C#
Java
JavaScript
PHP
Python
Ruby
JavaScript
Server-side scripts infoStored proceduresuser defined functionsuser defined functionsyesno
Triggersyesno infosimilar concept for controling cloud resourcesyesno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningyesShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistencynone
Foreign keys infoReferential integrityyesyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoMVCCACIDno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searchingACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nononoyes
User concepts infoAccess controlfine grained access rights according to SQL-standardUsers with fine-grained authorization concept, user roles and pluggable authenticationAccess rights for users and rolesno

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More resources
Postgres-XLSnowflakeSplunkSQL.JS
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