Opleiding: Entity Framework: Data Access in .NET

Develop Data Access Applications using Microsoft Visual Studio and Entity framework

In this training you will learn how to read data from a relational database using the Entity Framework, how to write it back after you have adjusted it. You get to know the Entity Framework thoroughly and among others you will learn to work with migrations, transactions and concurrency.
- Understand the concept of an ORM [Understand]
- Apply Code First [Apply]
- Apply Querying an entity data model. [Apply]
- Understand Loading entities [Understand]
- Apply migrations [Apply]
- Understand using CRUD operations in Entity Framework Core [Understand]

- Mismatch between OO and Relational Model
- ORM

- Entity types
- Entity properties
- Keys
- Fluent API vs. Data annotations
- Inheritance solutions:
- Table per Hierarchy
- Table per Type
- Table per Concrete Type

- One to many
- One to one
- Many to many

- LINQ
- IQueryable
- Loading related data:
- Eager loading
- Explicit loading
- Lazy loading
- Pagination

- Add a new item
- Update an item
- Delete an item
- Saving related data
- Concurrency conflicts
- Transactions

- FromSQL, SQLQuery, ExecuteSQL
- Database functions
- Query filters

- Add Migration
- Update the database
- Seeding
…