DBMS > Memcached vs. MySQL vs. openGauss
System Properties Comparison Memcached vs. MySQL vs. openGauss
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|Editorial information provided by DB-Engines|
|Name||Memcached Xexclude from comparison||MySQL Xexclude from comparison||openGauss Xexclude from comparison|
|Description||In-memory key-value store, originally intended for caching||Widely used open source RDBMS||An enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by Huawei|
|Primary database model||Key-value store||Relational DBMS Key/Value like access via memcached API||Relational DBMS|
|Secondary database models||Document store|
|Developer||Danga Interactive originally developed by Brad Fitzpatrick for LiveJournal||Oracle since 2010, originally MySQL AB, then Sun||Huawei and openGauss community|
|Current release||1.6.18, January 2023||8.0.32, January 2023||3.0, March 2022|
|License Commercial or Open Source||Open Source BSD license||Open Source GPL version 2. Commercial licenses with extended functionallity are available||Open Source|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Implementation language||C||C and C++||C, C++, Java|
|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||no||yes||yes|
|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||no|
|SQL Support of SQL||no||yes with proprietary extensions||ANSI SQL 2011|
|APIs and other access methods||Proprietary protocol||ADO.NET|
Proprietary native API
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||no||yes proprietary syntax||yes|
|Partitioning methods Methods for storing different data on different nodes||none||horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric||horizontal partitioning (by range, list and hash)|
|Replication methods Methods for redundantly storing data on multiple nodes||none Repcached, a Memcached patch, provides this functionallity||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes not for MyISAM storage engine||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID not for MyISAM storage engine||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes table locks or row locks depending on storage engine||yes|
|Durability Support for making data persistent||no||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||yes using SASL (Simple Authentication and Security Layer) protocol||Users with fine-grained authorization concept no user groups or roles||Access rights for users, groups and roles according to SQL-standard|
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