DBMS > H2 vs. MySQL
System Properties Comparison H2 vs. MySQL
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|Editorial information provided by DB-Engines
|H2 Xexclude from comparison
|MySQL Xexclude from comparison
|Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.
|Widely used open source RDBMS
|Primary database model
|Relational DBMS Key/Value like access via memcached API
|Secondary database models
|Oracle since 2010, originally MySQL AB, then Sun
|2.2.220, July 2023
|8.3.0, January 2024
|License Commercial or Open Source
|Open Source dual-licence (Mozilla public license, Eclipse public license)
|Open Source GPL version 2. Commercial licenses with extended functionallity are available
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|C and C++
|Server operating systems
|All OS with a Java VM
|Typing predefined data types such as float or date
|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.
|SQL Support of SQL
|yes with proprietary extensions
|APIs and other access methods
Proprietary native API
|Supported programming languages
|Server-side scripts Stored procedures
|Java Stored Procedures and User-Defined Functions
|yes proprietary syntax
|Partitioning methods Methods for storing different data on different nodes
|horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric
|Replication methods Methods for redundantly storing data on multiple nodes
|With clustering: 2 database servers on different computers operate on identical copies of a database
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
|Foreign keys Referential integrity
|yes not for MyISAM storage engine
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|ACID not for MyISAM storage engine
|Concurrency Support for concurrent manipulation of data
|yes, multi-version concurrency control (MVCC)
|yes table locks or row locks depending on storage engine
|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.
|User concepts Access control
|fine grained access rights according to SQL-standard
|Users with fine-grained authorization concept no user groups or roles
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