{"id":10892694,"uri":"rw://betamax/collections/265","name":"Room Database: Getting Started","description":"

Covers loads of cool concepts in local data persistence, using the Room database on Android. Learn how to use Entities, Queries, Relations, Kotlin Coroutines, Type Converters, and database Migrations to develop a complex and wholesome app.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-06-03T10:11:56.499Z","updated_at":"2021-01-17T15:30:29.437Z","duration":6740,"difficulty":"beginner","content_type":"collection","platform_id":55,"language_id":18,"editor_id":52,"group_id":null,"ordinal":null,"body":null,"warnings":[],"related_content_id":null,"popularity":302.65625,"labelled_as_new":false,"display_attributes":{"concepts_covered":"

Room basics
Setting Up Room
Data Access Objects - DAOs
Queries
Entities
Primary keys
Relations
Embedded entities
One-to-one relations
One-to-many relations
Many-to-many relations
Complex queries
Query comparisons
Kotlin Coroutines
Room suspend functions
Room & Kotlin Flow
Complex Room types
TypeConverters
Gson parser
Room Migrations
Destructive migrations
Migrations between versions

","intended_audience":"

Android developers looking to extend their app's functionality, by adding a way to persist data, using a local database.

"},"average_rating":"5.0","rating_count":8,"professional":false,"obfuscated_body":null,"to_param":"10892694-room-database-getting-started","released_versions_data":[{"id":10892694,"url":"10892694-room-database-getting-started","description":"Kotlin 1.3, Android 10, Android Studio 3.6"}],"groups":[{"id":2440,"uri":"rw://betamax/parts/393","content_id":10892694,"ordinal":0,"name":"Set Up The Room Database","description":null,"created_at":"2020-08-22T04:12:20.293Z","updated_at":"2020-08-22T04:12:20.303Z","display_number":null,"contents":[{"id":13613456,"uri":"rw://betamax/videos/4478","name":"Introduction","description":"

Learn what Room is, why it's useful to have local databases, and what you'll cover throughout this course.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":true,"created_at":"2020-08-22T04:12:19.643Z","updated_at":"2021-01-17T15:30:26.974Z","duration":162,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":1,"warnings":[],"related_content_id":null,"popularity":1301.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Introduction","duration_in_time":"2:42","identifier":"4478","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4478/5168a754-8237-4d7c-bee7-ac2d09a67af5.png","released":true,"has_materials_url":true,"permission_tags":[]},{"id":13613478,"uri":"rw://betamax/videos/4479","name":"Set Up The Project","description":"

Set up the project, take a look at the final application, and add needed dependencies for the app.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:12:53.673Z","updated_at":"2021-01-17T15:30:27.076Z","duration":164,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":2,"warnings":[],"related_content_id":null,"popularity":839.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Set Up The Project","duration_in_time":"2:44","identifier":"4479","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4479/e39c37af-f564-4e2a-a8ee-de777d5e6325.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613493,"uri":"rw://betamax/videos/4480","name":"Create Room Entities","description":"

Create your first Room Entity, add it to a basic Room database, and learn about the Entity and PrimaryKey annotations.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:13:24.089Z","updated_at":"2021-01-16T01:30:33.011Z","duration":319,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":3,"warnings":[],"related_content_id":null,"popularity":463.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Create Room Entities","duration_in_time":"5:19","identifier":"4480","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4480/50cc22e5-dc08-41d8-87cb-651f6819df3d.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613509,"uri":"rw://betamax/videos/4481","name":"Challenge: Room Entities","description":"

Practice using Room entities by creating more entities for the project and adding them to the database.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:13:47.962Z","updated_at":"2021-01-17T06:30:21.029Z","duration":104,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":4,"warnings":[],"related_content_id":null,"popularity":354.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Room Entities","duration_in_time":"1:44","identifier":"4481","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4481/cdbb9673-c6d6-453a-acee-af116f4d1e85.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613532,"uri":"rw://betamax/videos/4482","name":"Write DAOs","description":"

Learn what Data access objects are, how to implement them, and how to connect DAOs to Room.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:14:20.479Z","updated_at":"2021-01-16T10:30:31.136Z","duration":184,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":5,"warnings":[],"related_content_id":null,"popularity":312.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Write DAOs","duration_in_time":"3:04","identifier":"4482","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4482/8b675392-4c5c-40fb-a3e1-a151ee1b0095.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613564,"uri":"rw://betamax/videos/4483","name":"Challenge: DAOs","description":"

Practice creating data access objects in a small challenge. Add remaining DAOs to the app, and connect them to the Room Database.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:14:52.776Z","updated_at":"2021-01-17T11:30:23.910Z","duration":127,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":6,"warnings":[],"related_content_id":null,"popularity":271.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: DAOs","duration_in_time":"2:07","identifier":"4483","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4483/c05884eb-e51a-4dbb-8e63-037ade672e6b.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613592,"uri":"rw://betamax/videos/4484","name":"Implement A Repository","description":"

Learn how to abstract away the database behavior by implementing another layer of communication, through the Repository pattern.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:15:14.256Z","updated_at":"2021-01-17T12:30:25.859Z","duration":202,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":7,"warnings":[],"related_content_id":null,"popularity":566.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Implement A Repository","duration_in_time":"3:22","identifier":"4484","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4484/84401410-c872-4740-ab36-66460d0a519c.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613618,"uri":"rw://betamax/videos/4485","name":"Conclusion","description":"

Review all the concepts learned in the first part of the course, and prepare for the second part, where you'll implement queries.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:15:35.304Z","updated_at":"2021-01-16T04:30:26.714Z","duration":90,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2440,"ordinal":8,"warnings":[],"related_content_id":null,"popularity":262.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Conclusion","duration_in_time":"1:30","identifier":"4485","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4485/df319854-90ed-4f58-8b53-449e19b190e6.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":2441,"uri":"rw://betamax/parts/394","content_id":10892694,"ordinal":1,"name":"Make Queries","description":null,"created_at":"2020-08-22T04:18:24.882Z","updated_at":"2020-08-22T04:18:24.887Z","display_number":null,"contents":[{"id":13613700,"uri":"rw://betamax/videos/4486","name":"Introduction","description":"

Learn more about data access objects and queries. Learn what kind of queries you can write, and what their implementation looks like.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:18:23.930Z","updated_at":"2021-01-16T19:30:24.053Z","duration":126,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":9,"warnings":[],"related_content_id":null,"popularity":290.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Introduction","duration_in_time":"2:06","identifier":"4486","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4486/f078220c-7bd5-43ca-9dad-5369603369b8.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613731,"uri":"rw://betamax/videos/4487","name":"Write A Room Query","description":"

Write your first few Queries, then learn how to fetch data from the database, and how to write queries to insert data.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:18:47.170Z","updated_at":"2021-01-16T13:30:30.251Z","duration":380,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":10,"warnings":[],"related_content_id":null,"popularity":316.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Write A Room Query","duration_in_time":"6:20","identifier":"4487","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4487/214c39f7-07c3-41ab-a12b-083d7e7730b5.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613768,"uri":"rw://betamax/videos/4488","name":"Challenge: Pre-Populate The Database","description":"

Practice writing and using queries in a fun challenge! Finally insert data into the database, to pre-populate the database.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:19:07.161Z","updated_at":"2021-01-16T06:30:30.644Z","duration":178,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":11,"warnings":[],"related_content_id":null,"popularity":294.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Pre-Populate The Database","duration_in_time":"2:58","identifier":"4488","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4488/ad00ef83-36f6-4301-911c-d18e5217ae97.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613807,"uri":"rw://betamax/videos/4489","name":"Write Update Queries","description":"

Learn how to write different types of queries to add more functionality to the app.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:19:39.610Z","updated_at":"2021-01-16T01:30:33.953Z","duration":442,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":12,"warnings":[],"related_content_id":null,"popularity":287.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Write Update Queries","duration_in_time":"7:22","identifier":"4489","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4489/bd717660-2e4e-4457-923e-7266434978c3.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613846,"uri":"rw://betamax/videos/4490","name":"Challenge: Queries","description":"

Practice writing more queries, to add even more functionality to the app, in a fun challenge!

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:20:04.502Z","updated_at":"2021-01-16T01:30:34.052Z","duration":478,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":13,"warnings":[],"related_content_id":null,"popularity":251.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Queries","duration_in_time":"7:58","identifier":"4490","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4490/e1aab987-55ec-496b-aaeb-f0dd486f9d13.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613897,"uri":"rw://betamax/videos/4491","name":"Explore The Database Tables","description":"

After storing some data in the database, learn how to explore the database, using a third party database browser tool.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:20:29.018Z","updated_at":"2021-01-16T13:30:30.496Z","duration":190,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":14,"warnings":[],"related_content_id":null,"popularity":252.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Explore The Database Tables","duration_in_time":"3:10","identifier":"4491","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4491/b759d9a3-267a-44d8-ae45-7d809d474de6.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13613945,"uri":"rw://betamax/videos/4492","name":"Conclusion","description":"

Review the concepts you covered in this part of the course, then find out what's up next!

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:20:54.419Z","updated_at":"2021-01-16T01:30:34.216Z","duration":94,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2441,"ordinal":15,"warnings":[],"related_content_id":null,"popularity":209.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Conclusion","duration_in_time":"1:34","identifier":"4492","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4492/18af9f5a-f705-45e2-91c2-2dd95e54ec8a.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":2442,"uri":"rw://betamax/parts/395","content_id":10892694,"ordinal":2,"name":"Define Entity Relationships","description":null,"created_at":"2020-08-22T04:21:34.331Z","updated_at":"2020-08-22T04:21:34.336Z","display_number":null,"contents":[{"id":13613996,"uri":"rw://betamax/videos/4493","name":"Introduction","description":"

Learn what relationships are, and which types exist. Learn how to implement them, and about some examples of relationships.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:21:33.375Z","updated_at":"2021-01-16T01:30:34.274Z","duration":113,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2442,"ordinal":16,"warnings":[],"related_content_id":null,"popularity":213.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Introduction","duration_in_time":"1:53","identifier":"4493","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4493/339aa8eb-7a8b-4db5-b641-4b6f615fb836.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614051,"uri":"rw://betamax/videos/4494","name":"Implement One-To-One Relationships","description":"

Learn how to use the Embedded and Relation annotations, and how to create one-to-one relations between Books and Genres.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:22:00.601Z","updated_at":"2021-01-16T01:30:34.344Z","duration":173,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2442,"ordinal":17,"warnings":[],"related_content_id":null,"popularity":271.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Implement One-To-One Relationships","duration_in_time":"2:53","identifier":"4494","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4494/ad37517d-9acb-49a6-b055-04a323e14111.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614107,"uri":"rw://betamax/videos/4495","name":"Implement One-To-Many Relationships","description":"

Extend your knowledge of relations to build a one-to-many relation between a genre and books by that genre.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:22:24.161Z","updated_at":"2021-01-16T12:30:30.818Z","duration":283,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2442,"ordinal":18,"warnings":[],"related_content_id":null,"popularity":268.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Implement One-To-Many Relationships","duration_in_time":"4:43","identifier":"4495","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4495/583849e1-43f3-424b-861e-5f88b07ccd9f.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614169,"uri":"rw://betamax/videos/4496","name":"Challenge: Relationships","description":"

Practice using relations, to implement another use case, and combine the Review and the Book entities into a single structure.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:22:53.819Z","updated_at":"2021-01-16T01:30:34.546Z","duration":274,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2442,"ordinal":19,"warnings":[],"related_content_id":null,"popularity":206.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Relationships","duration_in_time":"4:34","identifier":"4496","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4496/3f6dca5c-bce3-4d3c-8946-d68b679ae1d1.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614231,"uri":"rw://betamax/videos/4497","name":"Conclusion","description":"

Review the concepts you've learned about relationships and combining multiple entities, and prepare for the next part.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:23:13.910Z","updated_at":"2021-01-16T01:30:34.664Z","duration":136,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2442,"ordinal":20,"warnings":[],"related_content_id":null,"popularity":176.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Conclusion","duration_in_time":"2:16","identifier":"4497","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4497/876018ae-0f76-45b7-a05f-a615afebaac7.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":2443,"uri":"rw://betamax/parts/396","content_id":10892694,"ordinal":3,"name":"Use Coroutines With Room","description":null,"created_at":"2020-08-22T04:24:51.242Z","updated_at":"2020-08-22T04:24:51.246Z","display_number":null,"contents":[{"id":13614319,"uri":"rw://betamax/videos/4498","name":"Introduction","description":"

Learn about Kotlin Coroutines, and the Flow API, and why it's important to avoid blocking the main thread.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:24:49.339Z","updated_at":"2021-01-16T01:30:34.790Z","duration":105,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":21,"warnings":[],"related_content_id":null,"popularity":194.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Introduction","duration_in_time":"1:45","identifier":"4498","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4498/00030aa6-a485-435f-9654-364b1a14807c.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614393,"uri":"rw://betamax/videos/4499","name":"Use Suspend Functions","description":"

Use the coroutines API to implement a few suspending function calls to the database, to offload the main thread.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:25:17.501Z","updated_at":"2021-01-16T01:30:34.917Z","duration":242,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":22,"warnings":[],"related_content_id":null,"popularity":191.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Use Suspend Functions","duration_in_time":"4:02","identifier":"4499","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4499/2a2e9c44-afb5-4042-8f80-dbc7d40d9eb3.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614468,"uri":"rw://betamax/videos/4500","name":"Challenge: Suspend Functions","description":"

Practice suspending functions with Room queries, to fetch data asynchronously.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:26:04.018Z","updated_at":"2021-01-16T01:30:35.055Z","duration":166,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":23,"warnings":[],"related_content_id":null,"popularity":185.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Suspend Functions","duration_in_time":"2:46","identifier":"4500","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4500/bb24029f-7703-4504-ad88-fbb80af1a204.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614549,"uri":"rw://betamax/videos/4501","name":"Use Kotlin Flow","description":"

Use the Kotlin Flow API to return a reactive stream from the database, and receive updates every time you add or remove an entry.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:26:24.712Z","updated_at":"2021-01-16T01:30:35.135Z","duration":325,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":24,"warnings":[],"related_content_id":null,"popularity":224.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Use Kotlin Flow","duration_in_time":"5:25","identifier":"4501","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4501/35d516e3-6a6a-4d49-b979-3c62dc79b01e.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614624,"uri":"rw://betamax/videos/4502","name":"Challenge: Kotlin Flow","description":"

Practice using the Kotlin Flow API, and add more reactive streams to database queries, to receive updates from the database.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:26:58.798Z","updated_at":"2021-01-16T01:30:35.301Z","duration":225,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":25,"warnings":[],"related_content_id":null,"popularity":168.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: Kotlin Flow","duration_in_time":"3:45","identifier":"4502","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4502/fb7f4577-41c0-4867-ab68-a6d171679046.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614703,"uri":"rw://betamax/videos/4503","name":"Conclusion","description":"

Wrap up this part of the course, by reviewing all the concepts you've learned about Kotlin Coroutines.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:27:19.834Z","updated_at":"2021-01-16T01:30:35.399Z","duration":84,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2443,"ordinal":26,"warnings":[],"related_content_id":null,"popularity":155.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Conclusion","duration_in_time":"1:24","identifier":"4503","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4503/f6429146-6301-4f58-98b3-b6dc90ce7738.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":2444,"uri":"rw://betamax/parts/397","content_id":10892694,"ordinal":4,"name":"Use Complex Types & Migrations","description":null,"created_at":"2020-08-22T04:28:28.866Z","updated_at":"2020-08-22T04:28:28.876Z","display_number":null,"contents":[{"id":13614791,"uri":"rw://betamax/videos/4504","name":"Introduction","description":"

Learn about using complex types in Room with TypeConverters, and about migrating the database between different versions.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:28:26.202Z","updated_at":"2021-01-16T01:30:35.505Z","duration":110,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":27,"warnings":[],"related_content_id":null,"popularity":175.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Introduction","duration_in_time":"1:50","identifier":"4504","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4504/8ba9ee4c-0738-4fb4-9c56-2fd84180eca1.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614877,"uri":"rw://betamax/videos/4505","name":"Use TypeConverters For Dates","description":"

Learn what TypeConverters are, how to use them, and what their functions have to be written as.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:28:53.041Z","updated_at":"2021-01-16T01:30:35.712Z","duration":213,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":28,"warnings":[],"related_content_id":null,"popularity":206.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Use TypeConverters For Dates","duration_in_time":"3:33","identifier":"4505","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4505/9736ad16-00e8-4e6f-96b0-7c3e51c93319.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13614967,"uri":"rw://betamax/videos/4506","name":"Add Database Migration","description":"

Fix the problems with changed database schema, using a database migration. Learn what migrations are, and how to write them.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:29:22.162Z","updated_at":"2021-01-16T01:30:35.838Z","duration":197,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":29,"warnings":[],"related_content_id":null,"popularity":176.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Add Database Migration","duration_in_time":"3:17","identifier":"4506","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4506/3ef3ea57-2238-48b1-957c-41be17c6cd6a.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13615058,"uri":"rw://betamax/videos/4507","name":"Store Lists As JSON Using TypeConverters","description":"

Learn how to store even more complex types of data, such as lists of objects. Migrate the database once more.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:29:42.028Z","updated_at":"2021-01-16T01:30:36.019Z","duration":414,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":30,"warnings":[],"related_content_id":null,"popularity":213.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Store Lists As JSON Using TypeConverters","duration_in_time":"6:54","identifier":"4507","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4507/a7440d98-aed3-4eb8-aedb-6893fd3d78c6.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13615159,"uri":"rw://betamax/videos/4508","name":"Challenge: TypeConverters","description":"

Practice using TypeConverters to store lists of data, implement a third migration for the database.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:30:38.105Z","updated_at":"2021-01-16T04:30:27.797Z","duration":259,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":31,"warnings":[],"related_content_id":null,"popularity":202.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Challenge: TypeConverters","duration_in_time":"4:19","identifier":"4508","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4508/b49f1751-7038-4840-8594-77ca8585c21b.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":13615261,"uri":"rw://betamax/videos/4509","name":"Conclusion","description":"

Congratulations on reaching the end of the course! Review all the concepts you've learned, and find out where to go next.

","released_at":"2020-08-27T13:00:00.000Z","searchable":true,"free":false,"created_at":"2020-08-22T04:31:59.039Z","updated_at":"2021-01-16T01:30:36.172Z","duration":181,"difficulty":"beginner","content_type":"episode","platform_id":55,"language_id":18,"editor_id":52,"group_id":2444,"ordinal":32,"warnings":[],"related_content_id":null,"popularity":195.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Room Database: Getting Started · Conclusion","duration_in_time":"3:01","identifier":"4509","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/4509/fd472d62-08b1-4576-8e39-c9b0cdcd17bf.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]}]}

All videos. All books. One low price.

All videos. All books.
One low price.