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DBMS > EXASOL vs. Oracle Rdb vs. Realm vs. Rockset

System Properties Comparison EXASOL vs. Oracle Rdb vs. Realm vs. Rockset

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Editorial information provided by DB-Engines
NameEXASOL  Xexclude from comparisonOracle Rdb  Xexclude from comparisonRealm  Xexclude from comparisonRockset  Xexclude from comparison
DescriptionHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataA scalable, reliable search and analytics service in the cloud, built on RocksDB
Primary database modelRelational DBMSRelational DBMSDocument storeDocument store
Secondary database modelsRelational DBMS
Search engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.66
Rank#138  Overall
#64  Relational DBMS
Score1.04
Rank#184  Overall
#84  Relational DBMS
Score7.18
Rank#52  Overall
#8  Document stores
Score1.07
Rank#180  Overall
#31  Document stores
Websitewww.exasol.comwww.oracle.com/­database/­technologies/­related/­rdb.htmlrealm.iorockset.com
Technical documentationwww.exasol.com/­resourceswww.oracle.com/­database/­technologies/­related/­rdb-doc.htmlrealm.io/­docsdocs.rockset.com
DeveloperExasolOracle, originally developed by Digital Equipment Corporation (DEC)Realm, acquired by MongoDB in May 2019Rockset
Initial release2000198420142019
Current release7.4.1.1, 2021
License infoCommercial or Open SourcecommercialcommercialOpen Sourcecommercial
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 languageC++
Server operating systemsHP Open VMSAndroid
Backend: server-less
iOS
Windows
hosted
Data schemeyesFlexible Schema (defined schema, partial schema, schema free)yesschema-free
Typing infopredefined data types such as float or dateyesyesyesdynamic typing
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.nononono infoingestion from XML files supported
Secondary indexesyesyesyesall fields are automatically indexed
SQL infoSupport of SQLyesyesnoRead-only SQL queries, including JOINs
APIs and other access methods.Net
JDBC
ODBC
WebSocket
HTTP REST
Supported programming languagesJava
Lua
Python
R
.Net
Java infowith Android only
Objective-C
React Native
Swift
Go
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresuser defined functionsno inforuns within the applications so server-side scripts are unnecessaryno
Triggersyesyes infoChange Listenersno
Partitioning methods infoMethods for storing different data on different nodesShardingnoneAutomatic sharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoHadoop integrationnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyes, on a single nodeACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
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.yesnoyes infoIn-Memory realm
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardyesAccess rights for users and organizations can be defined via Rockset console

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More resources
EXASOLOracle RdbRealmRockset
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