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Immediate Consistency if the client is online Immediate Consistency Foreign keys Referential integrity no no yes Transaction concepts Support to ensure data integrity after non-atomic manipulations of data yes ACID ACID Concurrency Support for concurrent manipulation of data yes yes via file-system locks 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. Tcl Server-side scripts Stored procedures limited functionality with using 'rules' no runs within the applications so server-side scripts are unnecessary no Triggers Callbacks are triggered when data changes yes Change Listeners yes Partitioning methods Methods for storing different data on different nodes none none Replication methods Methods for redundantly storing data on multiple nodes none none MapReduce Offers an API for user-defined Map/Reduce methods no no no Consistency concepts Methods to ensure consistency in a distributed system Eventual Consistency if the client is offline #SWIFT REALTIME REALM BROWSER IN THE DEVICE DRIVER#ODBC inofficial driver Supported programming languages Java RESTful HTTP API ADO.NET inofficial driver #SWIFT REALTIME REALM BROWSER IN THE DEVICE ANDROID#no no no Secondary indexes yes yes yes SQL Support of SQL no no yes SQL-92 is not fully supported APIs and other access methods Android support for XML data structures, and/or support for XPath, XQuery or XSLT. XML support Some form of processing data in XML format, e.g. ![]() Windows server-less Data scheme schema-free yes yes dynamic column types Typing predefined data types such as float or date yes yes yes not rigid because of 'dynamic typing' concept. Implementation language C Server operating systems hosted Android ![]() Providers of DBaaS offerings, please contact us to be listed. #SWIFT REALTIME REALM BROWSER IN THE DEVICE LICENSE#A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data Widely used embeddable, in-process RDBMS Primary database model Document store Document store Relational DBMS DB-Engines Ranking measures the popularity of database management systems Trend Chart Score 20.13 Rank #37 Overall #6 Document stores Score 9.51 Rank #51 Overall #9 Document stores Score 137.80 Rank #10 Overall #7 Relational DBMS Website /products/realtime-database realm.io Technical documentation /docs/database realm.io/docs Developer Google acquired by Google 2014 Realm, acquired by MongoDB in May 2019 Dwayne Richard Hipp Initial release 2012 2014 2000 Current release 3.39.3 (5 September 2022), September 2022 License Commercial or Open Source commercial Open Source Open Source Public Domain Cloud-based only Only available as a cloud service yes no no DBaaS offerings (sponsored links) Database as a Service iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data. Editorial information provided by DB-Engines Name Firebase Realtime Database X exclude from comparison Realm X exclude from comparison SQLite X exclude from comparison Description Cloud-hosted realtime document store. Please select another system to include it in the comparison. SQLite System Properties Comparison Firebase Realtime Database vs. ![]()
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