DBMS > IBM Cloudant vs. openGauss
System Properties Comparison IBM Cloudant vs. openGauss
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|Editorial information provided by DB-Engines|
|Name||IBM Cloudant Xexclude from comparison||openGauss Xexclude from comparison|
|Description||Database as a Service offering based on Apache CouchDB||An enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by Huawei|
|Primary database model||Document store||Relational DBMS|
|Secondary database models||Document store|
|Developer||IBM, Apache Software Foundation IBM acquired Cloudant in February 2014||Huawei and openGauss community|
|Current release||3.0, March 2022|
|License Commercial or Open Source||commercial||Open Source|
|Cloud-based only Only available as a cloud service||yes||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||Erlang||C, C++, Java|
|Server operating systems||hosted||Linux|
|Typing predefined data types such as float or date||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|
|SQL Support of SQL||no||ANSI SQL 2011|
|APIs and other access methods||RESTful HTTP/JSON API||JDBC|
|Supported programming languages||C#|
|Partitioning methods Methods for storing different data on different nodes||Sharding||horizontal partitioning (by range, list and hash)|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no atomic operations within a document possible||ACID|
|Concurrency Support for concurrent manipulation of data||yes Optimistic locking||yes|
|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.||no||no|
|User concepts Access control||Access rights for users can be defined per database||Access rights for users, groups and roles according to SQL-standard|
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