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DBMS > EXASOL vs. Oracle Coherence vs. Snowflake

System Properties Comparison EXASOL vs. Oracle Coherence vs. Snowflake

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Editorial information provided by DB-Engines
NameEXASOL  Xexclude from comparisonOracle Coherence  Xexclude from comparisonSnowflake  Xexclude from comparison
DescriptionHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.Oracles in-memory data grid solutionCloud-based data warehousing service for structured and semi-structured data
Primary database modelRelational DBMSKey-value storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.91
Rank#85  Overall
#44  Relational DBMS
Score2.28
Rank#102  Overall
#19  Key-value stores
Score2.27
Rank#103  Overall
#51  Relational DBMS
Websitewww.exasol.com/­en/­productswww.oracle.com/­technetwork/­middleware/­coherence/­overview/­index.htmlwww.snowflake.com
Technical documentationwww.exasol.com/­en/­community/­resourceswww.oracle.com/­technetwork/­middleware/­coherence/­documentation/­index.htmldocs.snowflake.net/­manuals/­index.html
DeveloperExasolOracleSnowflake Computing Inc.
Initial release200020072014
Current release12c, September 2016
License infoCommercial or Open Sourcecommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava
Server operating systemsAll OS with a Java VMhosted
Data schemeyesschema-freeyes infosupport of semi-structured data formats (JSON, XML, Avro)
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.nonoyes
Secondary indexesyesno
SQL infoSupport of SQLyesnoyes
APIs and other access methods.Net
WebSocket
JDBC
ODBC
JCache
JPA
RESTful HTTP API
CLI Client
JDBC
ODBC
Supported programming languagesJava
Lua
Python
R
.Net
C++
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresuser defined functionsnouser defined functions
Triggersyesyes infoLive Eventsno infosimilar concept for controling cloud resources
Partitioning methods infoMethods for storing different data on different nodesShardingShardingyes
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoHadoop integrationnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDconfigurableACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infooptionallyyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardauthentification to access the cache via certificates or http basic authenticationUsers with fine-grained authorization concept, user roles and pluggable authentication

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More resources
EXASOLOracle CoherenceSnowflake
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