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I am developing an android App and want to use Database for Local Storage.I have Searched on internet and found some comparisons between Local Storage Databases. But I have to Choose between Realm and GreenDAO. So please suggest me for which one to use.
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Due to its inclusion in the Android Software Development Kit (SDK), SQLite, an open-source relational database, is the most common database technology associated with Android applications.
Relationships in Realm are also extremely fast because indexes traverse a Btree-like structure to the related object. This is much faster than querying, because there is no need to perform another full query. It is simply a native pointer to the related object.
Realm is widely used for mobile app development, especially among junior Android developers. This database flawlessly works with Java, Kotlin, Swift, Objective-C, Xamarin, and React Native. The tool is currently gaining popularity among mobile engineers.
Most of the time in Android uses the SQLite as a mobile database technology. SQLite is a relational database that is used in various embedded on iOS and android platforms. it has a public license so that anybody can use it under the public domain.
This is a comparison of NoSQL(Realm) and ORM(GreenDAO).
NoSQL is better option if you need to handle large dataset and your queries do not need so many joins. Example:- If you need to fetch data from five tables, realm will give you options to filter data from two tables (one join at a time) then apply next join condition and so on. ORM has an advantage on joins as a Relational Database.
NoSQL database is used by Facebook, Google and LinkedIn:-
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