DBMS > atoti vs. Brytlyt vs. H2
System Properties Comparison atoti vs. Brytlyt vs. H2
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|Editorial information provided by DB-Engines|
|Name||atoti Xexclude from comparison||Brytlyt Xexclude from comparison||H2 Xexclude from comparison|
|Description||An in-memory DBMS combining transactional and analytical processing to handle the aggregation of ever-changing data.||Scalable GPU-accelerated RDBMS for very fast analytic and streaming workloads, leveraging PostgreSQL||Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.|
|Primary database model||Object oriented DBMS||Relational DBMS||Relational DBMS|
|Secondary database models||Spatial DBMS|
|Current release||5.0, August 2023||2.2.220, July 2023|
|License Commercial or Open Source||commercial free versions available||commercial||Open Source dual-licence (Mozilla public license, Eclipse public license)|
|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, C++ and CUDA||Java|
|Server operating systems||Linux|
|All OS with a Java VM|
|Typing predefined data types such as float or date||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 specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||Multidimensional Expressions (MDX)||yes||yes|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||Python||user defined functions in PL/pgSQL||Java Stored Procedures and User-Defined Functions|
|Partitioning methods Methods for storing different data on different nodes||Sharding, horizontal partitioning||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication||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||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes, multi-version concurrency control (MVCC)||yes||yes, multi-version concurrency control (MVCC)|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
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