DBMS > Hazelcast vs. MySQL vs. Oracle Rdb
System Properties Comparison Hazelcast vs. MySQL vs. Oracle Rdb
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|Editorial information provided by DB-Engines|
|Name||Hazelcast Xexclude from comparison||MySQL Xexclude from comparison||Oracle Rdb Xexclude from comparison|
|Description||A widely adopted in-memory data grid||Widely used open source RDBMS|
|Primary database model||Key-value store||Relational DBMS Key/Value like access via memcached API||Relational DBMS|
|Secondary database models||Document store JSON support with IMDG 3.12||Document store|
|Developer||Hazelcast||Oracle since 2010, originally MySQL AB, then Sun||Oracle, originally developed by Digital Equipment Corporation (DEC)|
|Current release||5.2.1, November 2022||8.0.31, October 2022||126.96.36.199, 2021|
|License Commercial or Open Source||Open Source Apache Version 2; commercial licenses available||Open Source GPL version 2. Commercial licenses with extended functionallity are available||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|ScaleGrid for MySQL: Fully managed MySQL hosting On-Premises and on a wide variety of cloud providers. Easily deploy, monitor, provision, and scale your deployments in the cloud.|
|Implementation language||Java||C and C++|
|Server operating systems||All OS with a Java VM||FreeBSD|
|HP Open VMS|
|Data scheme||schema-free||yes||Flexible Schema (defined schema, partial schema, schema free)|
|Typing predefined data types such as float or date||yes||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 the object must implement a serialization strategy||yes||no|
|SQL Support of SQL||SQL-like query language||yes with proprietary extensions||yes|
|APIs and other access methods||JCache|
RESTful HTTP API
Proprietary native API
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||yes Event Listeners, Executor Services||yes proprietary syntax|
|Partitioning methods Methods for storing different data on different nodes||Sharding||horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric|
|Replication methods Methods for redundantly storing data on multiple nodes||yes Replicated Map||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency or Eventual Consistency selectable by user Raft Consensus Algorithm||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||one or two-phase-commit; repeatable reads; read commited||ACID not for MyISAM storage engine||yes, on a single node|
|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||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes||no|
|User concepts Access control||Role-based access control||Users with fine-grained authorization concept no user groups or roles|
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