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DBMS > CrateDB vs. EXASOL vs. Kdb+ vs. Snowflake

System Properties Comparison CrateDB vs. EXASOL vs. Kdb+ vs. Snowflake

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Editorial information provided by DB-Engines
NameCrateDB  Xexclude from comparisonEXASOL  Xexclude from comparisonKdb+  Xexclude from comparisonSnowflake  Xexclude from comparison
DescriptionDistributed Date Store based on LuceneHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.High performance Time Series DBMSCloud-based data warehousing service for structured and semi-structured data
Primary database modelRelational DBMS
Search engine
Relational DBMSTime Series DBMSRelational DBMS
Secondary database modelsDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.61
Rank#191  Overall
#91  Relational DBMS
#13  Search engines
Score2.83
Rank#87  Overall
#44  Relational DBMS
Score5.48
Rank#58  Overall
#2  Time Series DBMS
Score2.18
Rank#106  Overall
#51  Relational DBMS
Websitecrate.iowww.exasol.com/­en/­productskx.comwww.snowflake.com
Technical documentationcrate.io/­docswww.exasol.com/­en/­community/­resourcescode.kx.comdocs.snowflake.net/­manuals/­index.html
DeveloperCrateExasolKx Systems, a division of First Derivatives plcSnowflake Computing Inc.
Initial release201320002000 infokdb was released 2000, kdb+ in 20032014
Current release3.6, May 2018
License infoCommercial or Open SourceOpen Sourcecommercialcommercial infofree 32-bit versioncommercial
Cloud-based only infoOnly available as a cloud servicenononoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaq
Server operating systemsAll OS with a Java 7 VMLinux
OS X
Solaris
Windows
hosted
Data schemeFlexible Schema (defined schema, partial schema, schema free)yesyesyes infosupport of semi-structured data formats (JSON, XML, Avro)
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.nonoyesyes
Secondary indexesyesyesyes infotable attribute 'grouped'
SQL infoSupport of SQLyes, but no triggers and constraintsyesSQL-like query language (q)yes
APIs and other access methodsADO.NET infocommunity maintained client
JDBC
MQTT (Message Queue Telemetry Transport)
PostgreSQL wire protocol
Prometheus Remote Read/Write
RESTful HTTP API
.Net
JDBC
ODBC
WebSocket
HTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
CLI Client
JDBC
ODBC
Supported programming languagesErlang
Go infocommunity maintained client
Java
JavaScript (Node.js) infocommunity maintained client
Perl infocommunity maintained client
PHP
Python
Ruby infocommunity maintained client
Scala infocommunity maintained client
Java
Lua
Python
R
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresuser defined functionsuser defined functionsuser defined functionsuser defined functions
Triggersnoyesyes infowith viewsno infosimilar concept for controling cloud resources
Partitioning methods infoMethods for storing different data on different nodesShardingShardinghorizontal partitioningyes
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factorMaster-slave replicationyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoHadoop integrationno infosimilar paradigm used for internal processingno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Read Your Own Writes Consistency infofor primary key lookups
Immediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infounique row identifiers can be used for implementing an optimistic concurrency control strategyACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyesno
User concepts infoAccess controlrights management via user accountsAccess rights for users, groups and roles according to SQL-standardrights management via user accountsUsers with fine-grained authorization concept, user roles and pluggable authentication
More information provided by the system vendor
CrateDBEXASOLKdb+Snowflake
Specific characteristicsCrateDB is an open source distributed SQL database that spreads data and processing...
» more
Integrated columnar database & programming system for streaming, real time and historical...
» more
Competitive advantagesCrateDB is typically used in operational analytics applications, particularly those...
» more
provides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
Typical application scenariosCrateDB is ideal for integrating and analyzing streams of data--often machine-generated--in...
» more
tick database streaming sensor data massive intelligence applications oil and gas...
» more
Key customersCrateDB customers include McAfee, Qualtrics , Nokia, NBC Golfnow , Digital Domain...
» more
Goldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Market metricsThe CrateDB open source project was started in 2014. CrateDB was the winner of TechCrunch...
» more
kdb+ performance and reliability proven by our customers in critical infrastructure...
» more
Licensing and pricing modelsCrateDB pricing CrateDB Community Edition is open source and free to use under the...
» more
upon request
» more

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More resources
CrateDBEXASOLKdb+Snowflake
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