DBMS > Heroic vs. MySQL vs. TimesTen
System Properties Comparison Heroic vs. MySQL vs. TimesTen
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|Editorial information provided by DB-Engines|
|Name||Heroic Xexclude from comparison||MySQL Xexclude from comparison||TimesTen Xexclude from comparison|
|Description||Time Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearch||Widely used open source RDBMS||In-Memory RDBMS compatible to Oracle|
|Primary database model||Time Series DBMS||Relational DBMS Key/Value like access via memcached API||Relational DBMS|
|Secondary database models||Document store|
|Developer||Spotify||Oracle since 2010, originally MySQL AB, then Sun||Oracle, TimesTen Performance Software, HP originally founded in HP Labs it was acquired by Oracle in 2005|
|Current release||8.0.33, April 2023||11 Release 2 (220.127.116.11.0)|
|License Commercial or Open Source||Open Source Apache 2.0||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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|Implementation language||Java||C and C++|
|Server operating systems||FreeBSD|
|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.||no||yes||no|
|Secondary indexes||yes via Elasticsearch||yes||yes|
|SQL Support of SQL||no||yes with proprietary extensions||yes|
|APIs and other access methods||HQL (Heroic Query Language, a JSON-based language)|
Proprietary native API
Oracle Call Interface (OCI)
|Supported programming languages||Ada|
|Server-side scripts Stored procedures||no||yes proprietary syntax||PL/SQL|
|Partitioning methods Methods for storing different data on different nodes||Sharding||horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||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||Eventual Consistency|
|Immediate Consistency||Immediate Consistency or Eventual Consistency depending on configuration|
|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||yes||yes||yes by means of logfiles and checkpoints|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes||yes|
|User concepts Access control||Users with fine-grained authorization concept no user groups or roles||fine grained access rights according to SQL-standard|
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