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DBMS > chDB vs. Ehcache vs. Oracle Rdb vs. TempoIQ

System Properties Comparison chDB vs. Ehcache vs. Oracle Rdb vs. TempoIQ

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonEhcache  Xexclude from comparisonOracle Rdb  Xexclude from comparisonTempoIQ infoformerly TempoDB  Xexclude from comparison
TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseA widely adopted Java cache with tiered storage optionsScalable analytics DBMS for sensor data, provided as a service (SaaS)
Primary database modelRelational DBMSKey-value storeRelational DBMSTime Series DBMS
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.07
Rank#376  Overall
#158  Relational DBMS
Score4.64
Rank#68  Overall
#8  Key-value stores
Score1.14
Rank#178  Overall
#80  Relational DBMS
Websitegithub.com/­chdb-io/­chdbwww.ehcache.orgwww.oracle.com/­database/­technologies/­related/­rdb.htmltempoiq.com (offline)
Technical documentationdoc.chdb.iowww.ehcache.org/­documentationwww.oracle.com/­database/­technologies/­related/­rdb-doc.html
DeveloperTerracotta Inc, owned by Software AGOracle, originally developed by Digital Equipment Corporation (DEC)TempoIQ
Initial release2023200919842012
Current release3.10.0, March 20227.4.1.1, 2021
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache Version 2; commercial licenses availablecommercialcommercial
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 languageJava
Server operating systemsserver-lessAll OS with a Java VMHP Open VMS
Data schemeschema-freeFlexible Schema (defined schema, partial schema, schema free)schema-free
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.nonono
Secondary indexesnoyes
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)noyesno
APIs and other access methodsJCacheHTTP API
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
JavaC#
Java
JavaScript infoNode.js
Python
Ruby
Server-side scripts infoStored proceduresnono
Triggersyes infoCache Event Listenersyes infoRealtime Alerts
Partitioning methods infoMethods for storing different data on different nodesSharding infoby using Terracotta Server
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoby using Terracotta Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemTunable Consistency (Strong, Eventual, Weak)Immediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infosupports JTA and can work as an XA resourceyes, on a single nodeno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infousing a tiered cache-storage approachyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnono
User concepts infoAccess controlnosimple authentication-based access control

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More resources
chDBEhcacheOracle RdbTempoIQ infoformerly TempoDB
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