DBMS > Firebase Realtime Database vs. Hawkular Metrics vs. SAP Advantage Database Server vs. Tkrzw

System Properties Comparison Firebase Realtime Database vs. Hawkular Metrics vs. SAP Advantage Database Server vs. Tkrzw

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Name	Firebase Realtime Database  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
			SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Cloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.	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 concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet
Primary database model	Document store	Time Series DBMS	Relational DBMS	Key-value store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 13.64 Rank #39   Overall #6   Document stores	Score 0.08 Rank #366   Overall #39   Time Series DBMS		Score 0.07 Rank #372   Overall #57   Key-value stores
Website	firebase.google.com/­products/­realtime-database	www.hawkular.org	www.sap.com/products/advantage-database-server.html	dbmx.net/­tkrzw
Technical documentation	firebase.google.com/­docs/­database	www.hawkular.org/­hawkular-metrics/­docs/­user-guide
Developer	Google acquired by Google 2014	Community supported by Red Hat	Sybase, SAP	Mikio Hirabayashi
Initial release	2012	2014	1993	2020
Current release				0.9.3, August 2020
License Commercial or Open Source	commercial	Open Source Apache 2.0	commercial	Open Source Apache Version 2.0
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		Java		C++
Server operating systems	hosted	Linux OS X Windows	Linux Windows	Linux macOS
Data scheme	schema-free	schema-free	yes	schema-free
Typing predefined data types such as float or date	yes	yes	yes	no
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	no
Secondary indexes	yes	no	yes
SQL Support of SQL	no	no	yes	no
APIs and other access methods	Android iOS JavaScript API RESTful HTTP API	HTTP REST	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	Java JavaScript Objective-C	Go Java Python Ruby	Delphi Perl PHP	C++ Java Python Ruby
Server-side scripts Stored procedures	limited functionality with using 'rules'	no	yes	no
Triggers	Callbacks are triggered when data changes	yes via Hawkular Alerting	yes	no
Partitioning methods Methods for storing different data on different nodes		Sharding based on Cassandra	none	none
Replication methods Methods for redundantly storing data on multiple nodes		selectable replication factor based on Cassandra	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	none
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency if the client is offline Immediate Consistency if the client is online	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes	no	ACID
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	yes using specific database classes
User concepts Access control	yes, based on authentication and database rules	no	fine grained access rights according to SQL-standard	no
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More resources
	Firebase Realtime Database	Hawkular Metrics	SAP Advantage Database Server former name: Sybase ADS	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet
DB-Engines blog posts	Cloud-based DBMS's popularity grows at high rates 12 December 2019, Paul Andlinger show all
Recent citations in the news	Realtime vs Cloud Firestore: Which Firebase Database to go? 8 March 2024, Appinventiv Atos cybersecurity blog: Misconfigured Firebase: A real-time cyber threat 18 January 2024, Atos Google launches Firebase Genkit, a new open source framework for building AI-powered apps 14 May 2024, TechCrunch Don't be like these 900+ websites and expose millions of passwords via Firebase 18 March 2024, The Register Google Firebase may have exposed 125M records from misconfigurations 19 March 2024, SC Media 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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