Learn how to work with the @Insert annotation in Room. It allows you to specify not only what you want inserted into your database, but also how you want to handle any conflicts that may arise.
- [Instructor] The @Insert annotation is used…to inform the room compiler that you…wanna have an implementation that inserts all…parameters into the database, as a single transaction.…So you specify your method name, just like you see here,…addRecipe, and then you add the annotation, @Insert.…This is the most basic use.…If you only have one parameter on your insert method,…it can also return the associating row id instead of void.…
So in this case, if the insert is successful,…then we'll get back the id of our inserted recipe.…This is also true if our parameter…is a collection of entities like we see here.…But instead of receiving a single row id,…then we'll get back a list of row ids.…The @Insert annotation also allows you…to set the conflict resolution strategy…that you wanna use if there are any constraint violations.…So this table has a listing of all of the various options.…
Replace, rollback, abort, fail, and ignore.…Abort is the default strategy used by room.…This means that your current statement is gonna be aborted…
To begin, Annyce Davis reviews using the de facto data persistence solution available on Android: SQLite. She takes you through basic SQLite concepts—such as how to create a database wrapper and insert data into a table—as well as a few more advanced topics. Next, she covers working with Cupboard, an open-source project dedicated to simplifying your SQLite interactions. To wrap up, she dives into working with Realm, an object database solution designed with mobile devices in mind. Throughout the course, Annyce discusses establishing relationships between database tables, creating and running queries, as well as performing data migrations.
- Overview of SQLite
- Defining a database table's schema
- Exploring SQLite create table syntax
- Executing create table statements
- Inserting data with a foreign key relation
- Inspecting the database using a terminal
- Updating and deleting records
- Working with Cupboard
- Working with Realm
Skill Level Intermediate
Q: This course was updated on 05/24/2018. What changed?
A: New videos were added that cover working with Room.
Android App Development: Unit Testingwith James P White2h 58m Intermediate
Learning Firebase Cloud Messaging for Androidwith Joe Marini52m 49s Intermediate
1. SQLite Basics
2. SQLite Beyond the Basics
3. Working with Room
4. Working with Cupboard
5. Realm Basics
6. Realm Beyond the Basics
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