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DBMS > NCache vs. SpaceTime vs. STSdb vs. YDB

System Properties Comparison NCache vs. SpaceTime vs. STSdb vs. YDB

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Editorial information provided by DB-Engines
NameNCache  Xexclude from comparisonSpaceTime  Xexclude from comparisonSTSdb  Xexclude from comparisonYDB  Xexclude from comparison
DescriptionOpen-Source and Enterprise in-memory Key-Value StoreSpaceTime is a spatio-temporal DBMS with a focus on performance.Key-Value Store with special method for indexing infooptimized for high performance using a special indexing methodA distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelKey-value storeSpatial DBMSKey-value storeDocument store
Relational DBMS
Secondary database modelsDocument store
Search engine infoUsing distributed Lucene
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.91
Rank#196  Overall
#29  Key-value stores
Score0.00
Rank#385  Overall
#7  Spatial DBMS
Score0.03
Rank#365  Overall
#54  Key-value stores
Score0.39
Rank#269  Overall
#43  Document stores
#126  Relational DBMS
Websitewww.alachisoft.com/­ncachewww.mireo.com/­spacetimegithub.com/­STSSoft/­STSdb4github.com/­ydb-platform/­ydb
ydb.tech
Technical documentationwww.alachisoft.com/­resources/­docsydb.tech/­en/­docs
DeveloperAlachisoftMireoSTS Soft SCYandex
Initial release2005202020112019
Current release5.3.3, April 20244.0.8, September 2015
License infoCommercial or Open SourceOpen Source infoEnterprise Edition availablecommercialOpen Source infoGPLv2, commercial license availableOpen Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC#, .NET, .NET Core, JavaC++C#
Server operating systemsLinux
Windows
LinuxWindowsLinux
Data schemeschema-freeyesyesFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or datepartial infoSupported data types are Lists, Queues, Hashsets, Dictionary and Counteryesyes infoprimitive types and user defined types (classes)yes
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 indexesyesnonoyes
SQL infoSupport of SQLSQL-like query syntax and LINQ for searching the cache. Cache Synchronization with SQL Server using SQL dependency.A subset of ANSI SQL is implementednoSQL-like query language (YQL)
APIs and other access methodsIDistributedCache
JCache
LINQ
Proprietary native API
RESTful HTTP API.NET Client APIRESTful HTTP API (DynamoDB compatible)
Supported programming languages.Net
.Net Core
C#
Java
JavaScript (Node.js)
Python
Scala
C#
C++
Python
C#
Java
Go
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresno infosupport for stored procedures with SQL-Server CLRnonono
Triggersyes infoNotificationsnono
Partitioning methods infoMethods for storing different data on different nodesyesFixed-grid hypercubesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelReal-time block device replication (DRBD)noneActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Strong Eventual Consistency over WAN with Conflict Resolution using Bridge Topology
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataoptimistic locking and pessimistic lockingnonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
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.yesnono
User concepts infoAccess controlAuthentication to access the cache via Active Directory/LDAP (possible roles: user, administrator)yesnoAccess rights defined for Yandex Cloud users
More information provided by the system vendor
NCacheSpaceTimeSTSdbYDB
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

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NCacheSpaceTimeSTSdbYDB
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