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DBMS > chDB vs. Oracle Rdb vs. UniData,UniVerse

System Properties Comparison chDB vs. Oracle Rdb vs. UniData,UniVerse

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonOracle Rdb  Xexclude from comparisonUniData,UniVerse  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseMultiValue database and application server with SQL mapping layer and meta database capabilities
Primary database modelRelational DBMSRelational DBMSMultivalue DBMS
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.05
Rank#358  Overall
#152  Relational DBMS
Score1.04
Rank#184  Overall
#84  Relational DBMS
Score2.25
Rank#112  Overall
#2  Multivalue DBMS
Websitegithub.com/­chdb-io/­chdbwww.oracle.com/­database/­technologies/­related/­rdb.htmlwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-unidata
Technical documentationdoc.chdb.iowww.oracle.com/­database/­technologies/­related/­rdb-doc.htmldocs.rocketsoftware.com/­bundle?cluster=true&labelkey=unidata&labelkey=prod_unidata
DeveloperOracle, originally developed by Digital Equipment Corporation (DEC)Rocket Software
Initial release202319841985
Current release7.4.1.1, 2021
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC
Server operating systemsserver-lessHP Open VMSAIX
HP-UX
Linux
Solaris
Windows
Data schemeFlexible Schema (defined schema, partial schema, schema free)schema-free
Typing infopredefined data types such as float or dateyesoptional
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.no
Secondary indexesyesyes
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)yesyes
APIs and other access methodsJava API infoJPA
JDBC
ODBC
OLE DB
Proprietary protocol
RESTful HTTP API
SOAP-based API
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
.Net
Basic infoU2 Basic
C
Java
Server-side scripts infoStored proceduresyes
Triggersyes infoU2 Basic
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes, on a single nodeACID infoconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess rights according to SQL-standard and operating system based

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More resources
chDBOracle RdbUniData,UniVerse
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