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DBMS > EXASOL vs. OceanBase vs. openGemini vs. SAP HANA vs. SQream DB

System Properties Comparison EXASOL vs. OceanBase vs. openGemini vs. SAP HANA vs. SQream DB

Editorial information provided by DB-Engines
NameEXASOL  Xexclude from comparisonOceanBase  Xexclude from comparisonopenGemini  Xexclude from comparisonSAP HANA  Xexclude from comparisonSQream DB  Xexclude from comparison
DescriptionHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.A distributed, high available RDBMS compatible with Oracle and MySQLAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityIn-memory, column based data store. Available as appliance or cloud servicea GPU-based, columnar RDBMS for big data analytics workloads
Primary database modelRelational DBMSRelational DBMSTime Series DBMSRelational DBMSRelational DBMS
Secondary database modelsDocument store
Wide column store
Document store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.76
Rank#139  Overall
#62  Relational DBMS
Score1.57
Rank#149  Overall
#69  Relational DBMS
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score44.27
Rank#23  Overall
#16  Relational DBMS
Score0.74
Rank#224  Overall
#103  Relational DBMS
Websitewww.exasol.comen.oceanbase.comwww.opengemini.org
github.com/­openGemini
www.sap.com/­products/­hana.htmlsqream.com
Technical documentationwww.exasol.com/­resourcesen.oceanbase.com/­docs/­oceanbase-databasedocs.opengemini.org/­guidehelp.sap.com/­hanadocs.sqream.com
DeveloperExasolOceanBase infopreviously Alibaba and Ant GroupHuawei and openGemini communitySAPSQream Technologies
Initial release20002010202220102017
Current release4.3.0, April 20241.1, July 20232.0 SPS07 (April 4, 2023), April 20232022.1.6, December 2022
License infoCommercial or Open SourcecommercialOpen Source infoCommercial license availableOpen Source infoApache Version 2.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenononono infoalso available as a cloud based serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++GoC++, CUDA, Haskell, Java, Scala
Server operating systemsLinuxLinux
Windows
Appliance or cloud-serviceLinux
Data schemeyesyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesInteger, Float, Boolean, Stringyesyes, ANSI Standard SQL Types
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.noyesnono
Secondary indexesyesyesyesyesno
SQL infoSupport of SQLyesyesSQL-like query languageyesyes
APIs and other access methods.Net
JDBC
ODBC
WebSocket
JDBC
ODBC
ODP.NET
Oracle Call Interface (OCI)
Proprietary native API
Table API
HTTP RESTJDBC
ODBC
.Net
JDBC
ODBC
Supported programming languagesJava
Lua
Python
R
Ada infoin MySQL-compatible model
C infoin Oracle- and MySQL- compatible models
C++ infoin Oracle- and MySQL- compatible models
D infoin MySQL-compatible model
Delphi infoin MySQL-compatible model
Eiffel infoin MySQL-compatible model
Erlang infoin MySQL-compatible model
Haskell infoin MySQL-compatible model
Java infoin Oracle- and MySQL- compatible models
JavaScript (Node.js) infoin MySQL-compatible model
Objective-C infoin MySQL-compatible model
OCaml infoin MySQL-compatible model
Perl infoin MySQL-compatible model
PHP infoin MySQL-compatible model
Python infoin MySQL-compatible model
Ruby infoin MySQL-compatible model
Scheme infoin MySQL-compatible model
Tcl infoin MySQL-compatible model
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
C++
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresuser defined functionsPL/SQL in oracle-compatible mode, MySQL Stored Procedure in mysql-compatible modenoSQLScript, Ruser defined functions in Python
Triggersyesyesnoyesno
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioning (by hash, key, range, range columns, list, and list columns)Shardingyeshorizontal and vertical partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using Paxosyesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoHadoop integrationnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardAccess rights for users, groups and roles according to SQL-standardAdministrators and common users accountsyes

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More resources
EXASOLOceanBaseopenGeminiSAP HANASQream DB
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