DBMS > FoundationDB vs. Hawkular Metrics vs. SAP Advantage Database Server vs. ToroDB

System Properties Comparison FoundationDB vs. Hawkular Metrics vs. SAP Advantage Database Server vs. ToroDB

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Editorial information provided by DB-Engines
Name	FoundationDB  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	ToroDB  Xexclude from comparison
	Created as commercial project in 2013, FoundationDB has been acquired by Apple in March 2015 and was withdrawn from the market. As a consequence, the product was removed from the DB-Engines ranking. In April 2018, Apple open-sourced FoundationDB and it therefore reappears in the ranking.		SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.	ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Ordered key-value store. Core features are complimented by layers.	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	Low-cost RDBMS with access to ISAM and FoxPro data structures	A MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database model	Document store supported via specific layer Key-value store Relational DBMS supported via specific SQL-layer	Time Series DBMS	Relational DBMS	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 1.06 Rank #185   Overall #31   Document stores #28   Key-value stores #85   Relational DBMS	Score 0.08 Rank #366   Overall #39   Time Series DBMS
Website	github.com/­apple/­foundationdb	www.hawkular.org	www.sap.com/products/advantage-database-server.html	github.com/­torodb/­server
Technical documentation	apple.github.io/­foundationdb	www.hawkular.org/­hawkular-metrics/­docs/­user-guide
Developer	FoundationDB	Community supported by Red Hat	Sybase, SAP	8Kdata
Initial release	2013	2014	1993	2016
Current release	6.2.28, November 2020
License Commercial or Open Source	Open Source Apache 2.0	Open Source Apache 2.0	commercial	Open Source AGPL-V3
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	C++	Java		Java
Server operating systems	Linux OS X Windows	Linux OS X Windows	Linux Windows	All OS with a Java 7 VM
Data scheme	schema-free some layers support schemas	schema-free	yes	schema-free
Typing predefined data types such as float or date	no some layers support typing	yes	yes	yes string, integer, double, boolean, date, object_id
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
Secondary indexes	no	no	yes
SQL Support of SQL	supported in specific SQL layer only	no	yes
APIs and other access methods		HTTP REST	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	.Net C C++ Go Java JavaScript Node.js PHP Python Ruby Swift	Go Java Python Ruby	Delphi Perl PHP
Server-side scripts Stored procedures	in SQL-layer only	no	yes
Triggers	no	yes via Hawkular Alerting	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding	Sharding based on Cassandra	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	selectable replication factor based on Cassandra	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	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	Linearizable consistency	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency	Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	in SQL-layer only	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	ACID	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		no	no caching of (temporary) tables can be configured
User concepts Access control	no	no	fine grained access rights according to SQL-standard	Access rights for users and roles
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More resources
	FoundationDB	Hawkular Metrics	SAP Advantage Database Server former name: Sybase ADS	ToroDB
Recent citations in the news	FoundationDB team's new venture, Antithesis, raises $47M to enhance software testing 13 February 2024, SiliconANGLE News Stonebraker Seeks to Invert the Computing Paradigm with DBOS 12 March 2024, Datanami Antithesis raises $47M to launch an automated testing platform for software 13 February 2024, TechCrunch FoundationDB, a very interesting NoSQL database owned by Apple, is now an open-source project 19 April 2018, GeekWire Apple Open Sources FoundationDB 19 April 2018, MacRumors provided by Google News	Waiting for Red Hat OpenShift 4.0? Too late, 4.1 has already arrived… • DEVCLASS 5 June 2019, DevClass provided by Google News	SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News

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