DBMS > Elasticsearch vs. NCache vs. SQream DB
System Properties Comparison Elasticsearch vs. NCache vs. SQream DB
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|Editorial information provided by DB-Engines
|Elasticsearch Xexclude from comparison
|NCache Xexclude from comparison
|SQream DB Xexclude from comparison
|A distributed, RESTful modern search and analytics engine based on Apache Lucene Elasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metric
|Open-Source and Enterprise in-memory Key-Value Store
|a GPU-based, columnar RDBMS for big data analytics workloads
|Primary database model
|Secondary database models
Search engine Using distributed Lucene
|8.6, January 2023
|5.3, September 2022
|2022.1.6, December 2022
|License Commercial or Open Source
|Open Source Elastic License
|Open Source Enterprise Edition available
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|C#, .NET, .NET Core, Java
|C++, CUDA, Haskell, Java, Scala
|Server operating systems
|All OS with a Java VM
|schema-free Flexible type definitions. Once a type is defined, it is persistent
|Typing predefined data types such as float or date
|partial Supported data types are Lists, Queues, Hashsets, Dictionary and Counter
|yes, ANSI Standard SQL Types
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.
|yes All search fields are automatically indexed
|SQL Support of SQL
|SQL-like query language
|SQL-like query syntax and LINQ for searching the cache. Cache Synchronization with SQL Server using SQL dependency.
|APIs and other access methods
RESTful HTTP/JSON API
Proprietary native API
|Supported programming languages
Community Contributed Clients
|Server-side scripts Stored procedures
|no support for stored procedures with SQL-Server CLR
|user defined functions in Python
|yes by using the 'percolation' feature
|Partitioning methods Methods for storing different data on different nodes
|horizontal and vertical partitioning
|Replication methods Methods for redundantly storing data on multiple nodes
|yes, with selectable consistency level
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
|Eventual Consistency Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all
Strong Eventual Consistency over WAN with Conflict Resolution using Bridge Topology
|Foreign keys Referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|optimistic locking and pessimistic locking
|Concurrency Support for concurrent manipulation of data
|Durability Support for making data persistent
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|Memcached and Redis integration
|User concepts Access control
|Authentication to access the cache via Active Directory/LDAP (possible roles: user, administrator)
|More information provided by the system vendor
|NCache has been the market leader in .NET Distributed Caching since 2005 . NCache...
|NCache is 100% .NET/ .NET Core based which fully supports ASP.NET Core Sessions ,...
|Typical application scenarios
|NCache enables industries like retail, finance, banking IoT, travel, ecommerce, healthcare...
|Bank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
|Market Leader in .NET Distributed Caching since 2005.
|Licensing and pricing models
|NCache Open Source is free on an as-is basis without any support. NCache Enterprise...
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