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DBMS > NCache vs. Oracle Rdb vs. QuestDB

System Properties Comparison NCache vs. Oracle Rdb vs. QuestDB

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Editorial information provided by DB-Engines
NameNCache  Xexclude from comparisonOracle Rdb  Xexclude from comparisonQuestDB  Xexclude from comparison
DescriptionOpen source in-memory key-value storeA high performance, low latency Time Series DBMS
Primary database modelKey-value storeRelational DBMSTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.05
Rank#149  Overall
#26  Key-value stores
Score1.01
Rank#152  Overall
#74  Relational DBMS
Score0.18
Rank#261  Overall
#19  Time Series DBMS
Websitewww.alachisoft.com/­ncachewww.oracle.com/­technetwork/­database/­database-technologies/­rdb/­overview/­index.htmlwww.questdb.io
Technical documentationwww.alachisoft.com/­resources/­docswww.questdb.io/­docs/­docstructure
DeveloperAlachisoftOracle, originally developed by Digital Equipment Corporation (DEC)QuestDB Limited
Initial release200419842014
Current release5.0, May 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen Source infoAGPL 3.0
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#, C++, .NETJava
Server operating systemsWindowsHP Open VMSLinux
macOS
Windows
Data schemeschema-freeFlexible Schema (defined schema, partial schema, schema free)yes
Typing infopredefined data types such as float or dateyesyes
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 indexesyesyesno
SQL infoSupport of SQLSQL-like query syntax (OQL) for searching the cacheyesSQL-like query language
APIs and other access methodsLINQ
Proprietary protocol
HTTP REST
Supported programming languages.Net
C#
Java
Visual Basic.NET
Java
Server-side scripts infoStored proceduresno infosupport for stored procedures with SQL-Server CLRno
Triggersyes infoNotificationsno
Partitioning methods infoMethods for storing different data on different nodesyeshorizontal partitioning (by timestamps)
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataoptimistic lockingyes, on a single nodeACID for single-table writes
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnono
User concepts infoAccess controlauthentification to access the cache via Active Directory/LDAP (possible roles: user, administrator)
More information provided by the system vendor
NCacheOracle RdbQuestDB
Specific characteristicsNCache has been the market leader in .NET Distributed Caching since 2005 . NCache...
» more
Competitive advantagesNCache is 100% .NET/ .NET Core based which fully supports ASP.NET Core Sessions ,...
» more
Typical application scenariosNCache enables industries like retail, finance, banking IoT, travel, ecommerce, healthcare...
» more
Key customersBank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
» more
Market metricsMarket Leader in .NET Distributed Caching since 2005.
» more
Licensing and pricing modelsNCache Open Source is free on an as-is basis without any support. NCache Enterprise...
» more
News

Using NCache as a JSON Store
25 February 2020

Understanding Multi-Datacenter WAN Replication in NCache
19 February 2020

NCache becomes a RedHat Technology Partner.
23 January 2020

Best Practices for Monitoring NCache in Production
21 January 2020

NCache 5.0 SP2 Released
7 January 2020

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
NCacheOracle RdbQuestDB
Recent citations in the news

How to use NCache in ASP.Net Core
25 February 2019, InfoWorld

NCache Distributed Cache for .NET Gets Open Sourced
28 January 2015, Visual Studio Magazine

In-Memory Key-Value Databases: NCache (Initial Evaluation)
31 October 2018, GameDev.net

Basic NCache is Now Open Source
10 March 2015, InfoQ.com

Velocity: Microsoft's Distributed In-Memory Cache
4 June 2008, InfoQ.com

provided by Google News

Database Types from Hierarchical to Graph: An Industry Breakdown
30 May 2018, Dice Insights

New Eclipse Tools for OpenVMS and Oracle RDB Certified by eCube Systems to Work with NXTware Remote
12 November 2013, PR Web

Transoft Completes Migration Of Key Nuclear Fuels Production Control System - News - Nuclear Power News - Nuclear Street
2 October 2009, Nuclear Power Portal

provided by Google News

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