DBMS > Coveo vs. Tkrzw vs. Yaacomo
System Properties Comparison Coveo vs. Tkrzw vs. Yaacomo
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|Editorial information provided by DB-Engines|
|Name||Coveo Xexclude from comparison||Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet Xexclude from comparison||Yaacomo Xexclude from comparison|
|Description||AI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code development||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||Search engine||Key-value store||Relational DBMS|
|Developer||Coveo||Mikio Hirabayashi||Q2WEB GmbH|
|Current release||0.9.3, August 2020|
|License Commercial or Open Source||commercial||Open Source Apache Version 2.0||commercial|
|Cloud-based only Only available as a cloud service||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||hosted||Linux|
|Data scheme||hybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configuration||schema-free||yes|
|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||no||no||yes|
|APIs and other access methods||RESTful HTTP API||JDBC|
|Supported programming languages||C#|
|Server-side scripts Stored procedures||no||no|
|Partitioning methods Methods for storing different data on different nodes||yes||none||horizontal partitioning|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||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||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||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 using specific database classes||yes|
|User concepts Access control||granular access controls, API key management, content filters||no||fine grained access rights according to SQL-standard|
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|Coveo||Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet||Yaacomo|
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