DBMS > IBM Db2 Event Store vs. Tkrzw vs. Yaacomo
System Properties Comparison IBM Db2 Event Store vs. Tkrzw vs. Yaacomo
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|Editorial information provided by DB-Engines|
|Name||IBM Db2 Event Store Xexclude from comparison||Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet Xexclude from comparison||Yaacomo Xexclude from comparison|
|Description||Distributed Event Store optimized for Internet of Things use cases||A concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet||OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing|
|Primary database model||Event Store|
Time Series DBMS
|Key-value store||Relational DBMS|
|Developer||IBM||Mikio Hirabayashi||Q2WEB GmbH|
|Current release||2.0||0.9.3, August 2020|
|License Commercial or Open Source||commercial free developer edition available||Open Source Apache Version 2.0||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||C and C++||C++|
|Server operating systems||Linux Linux, macOS, Windows for the developer addition||Linux|
|Typing predefined data types such as float or date||yes||no||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||no||no|
|SQL Support of SQL||yes through the embedded Spark runtime||no||yes|
|APIs and other access methods||ADO.NET|
RESTful HTTP API
|Supported programming languages||C|
|Server-side scripts Stored procedures||yes||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none||horizontal partitioning|
|Replication methods Methods for redundantly storing data on multiple nodes||Active-active shard replication||none||Source-replica 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|
|Foreign keys Referential integrity||no||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID|
|Concurrency Support for concurrent manipulation of data||No - written data is immutable||yes||yes|
|Durability Support for making data persistent||Yes - Synchronous writes to local disk combined with replication and asynchronous writes in parquet format to permanent shared storage||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes using specific database classes||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no||fine grained access rights according to SQL-standard|
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|IBM Db2 Event Store||Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet||Yaacomo|
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