DBMS > H2GIS vs. IBM Db2 warehouse vs. RethinkDB

System Properties Comparison H2GIS vs. IBM Db2 warehouse vs. RethinkDB

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Editorial information provided by DB-Engines
Name	H2GIS  Xexclude from comparison	IBM Db2 warehouse formerly named IBM dashDB  Xexclude from comparison	RethinkDB  Xexclude from comparison
Description	Spatial extension of H2	Cloud-based data warehousing service	DBMS for the Web with a mechanism to push updated query results to applications in realtime.
Primary database model	Spatial DBMS	Relational DBMS	Document store
Secondary database models	Relational DBMS		Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.03 Rank #341   Overall #4   Spatial DBMS	Score 1.83 Rank #130   Overall #63   Relational DBMS	Score 3.06 Rank #101   Overall #19   Document stores
Website	www.h2gis.org	www.ibm.com/­products/­db2-warehouse	rethinkdb.com
Technical documentation	www.h2gis.org/­docs/­home		rethinkdb.com/­docs
Developer	CNRS	IBM	The Linux Foundation since July 2017
Initial release	2013	2014	2009
Current release			2.4.1, August 2020
License Commercial or Open Source	Open Source LGPL 3.0	commercial	Open Source Apache Version 2
Cloud-based only Only available as a cloud service	no	yes	no
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Implementation language	Java		C++
Server operating systems		hosted	Linux OS X Windows
Data scheme	yes	yes	schema-free
Typing predefined data types such as float or date	yes	yes	yes string, binary, float, bool, date, geometry
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 Import/export of XML data possible	no
Secondary indexes	yes	yes	yes
SQL Support of SQL	yes	yes	no
APIs and other access methods		.NET Client API JDBC ODBC OLE DB
Supported programming languages	Java	Java JavaScript (Node.js) Perl PHP Python R Ruby	C community-supported driver C# community-supported driver C++ community-supported driver Clojure community-supported driver Dart community-supported driver Erlang community-supported driver Go community-supported driver Haskell community-supported driver Java official driver JavaScript (Node.js) official driver Lisp community-supported driver Lua community-supported driver Objective-C community-supported driver Perl community-supported driver PHP community-supported driver Python official driver Ruby official driver Scala community-supported driver
Server-side scripts Stored procedures	yes based on H2	PL/SQL, SQL PL
Triggers	yes	yes	Client-side triggers through changefeeds
Partitioning methods Methods for storing different data on different nodes	none	Sharding	Sharding range based
Replication methods Methods for redundantly storing data on multiple nodes	yes based on H2	yes	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	yes
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	Atomic single-document operations
Concurrency Support for concurrent manipulation of data	yes, multi-version concurrency control (MVCC)	yes	yes MVCC based
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	yes	no
User concepts Access control	yes based on H2	fine grained access rights according to SQL-standard	yes users and table-level permissions
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More resources
	H2GIS	IBM Db2 warehouse formerly named IBM dashDB	RethinkDB
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