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DBMS > Alibaba Cloud HybridDB vs. Firebase Realtime Database vs. FoundationDB

System Properties Comparison Alibaba Cloud HybridDB vs. Firebase Realtime Database vs. FoundationDB

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Editorial information provided by DB-Engines
NameAlibaba Cloud HybridDB  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonFoundationDB  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Created as commercial project in 2013, FoundationDB has been acquired by Apple in March 2015 and was withdrawn from the market.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.
DescriptionHybridDB is an online MPP (Massively Parallel Processing) data warehousing service based on GreenplumCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Ordered key-value store. Core features are complimented by layers.
Primary database modelRelational DBMSDocument storeDocument store infosupported via specific layer
Key-value store
Relational DBMS infosupported via specific SQL-layer
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.26
Rank#241  Overall
#114  Relational DBMS
Score11.25
Rank#40  Overall
#7  Document stores
Score0.77
Rank#166  Overall
#23  Document stores
#28  Key-value stores
#83  Relational DBMS
Websitewww.alibabacloud.com/­product/­hybriddb-postgresqlfirebase.google.com/­products/­realtime-databasewww.foundationdb.org
Technical documentationwww.alibabacloud.com/­help/­doc-detail/­35387.htmfirebase.google.com/­docs/­databaseapple.github.io/­foundationdb
DeveloperAlibaba / Pivotal Software Inc. / PostgreSQL Global Development GroupGoogle infoacquired by Google 2014FoundationDB
Initial release201620122013
Current release6.1.11, July 2019
License infoCommercial or Open SourcecommercialcommercialOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud serviceyesyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++
Server operating systemshostedhostedLinux
OS X
Windows
Data schemeyesschema-freeschema-free infosome layers support schemas
Typing infopredefined data types such as float or dateyesyesno infosome layers support typing
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesno
Secondary indexesyesyesno
SQL infoSupport of SQLyesnosupported in specific SQL layer only
APIs and other access methodsJDBC
ODBC
Android
iOS
JavaScript API
RESTful HTTP API
Supported programming languagesC
Java
Perl
Python
R
Java
JavaScript
Objective-C
.Net
C
C++
Go
Java
JavaScript infoNode.js
PHP
Python
Ruby
Swift
Server-side scripts infoStored proceduresyeslimited functionality with using 'rules'in SQL-layer only
TriggersyesCallbacks are triggered when data changesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Linearizable consistency
Foreign keys infoReferential integrityyesnoin SQL-layer only
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlfine grained access rights according to SQL-standardyes, based on authentication and database rulesno

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More resources
Alibaba Cloud HybridDBFirebase Realtime DatabaseFoundationDB
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