12/20/2023 0 Comments Kotlin sqliteIn Room, we have added many brand-new features, such as the Upsert operation, which attempts to insert an entity when there is no uniqueness conflict or update the entity if there is a conflict, and support for using Kotlin value classes for KSP. Room is the recommended data persistence layer which provides an abstraction layer over SQLite, allowing for increased usability and safety over the platform. Most applications need to persist local state - whether it be caching results, managing local lists of user enter data, or powering data returned in the UI. So, if you add a column as part of an update, add it in the create statement inside the onCreate function (for new users) and as an alter statement inside the onUpgrade function (for existing users).ĭo you know of an even better way to handle Android SQLite database migrations? Send us your technique and if we agree, we will add it to this guide.App architecture libraries and components ensure that apps are robust, testable, and maintainable. One other thing to keep in mind is that you will also want to alter your create statements that are run inside the onCreate function. No matter what previous version was and regardless of what more recent version they upgrade to, the app will run the proper statements to take the app from the older schema to the properly upgraded one. Now the app will iterate over the update statements and run any that are needed. Public class SQLiteHelper extends SQLiteOpenHelper
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