crud operation in .net core with sql database



To perform CRUD operations (Create, Read, Update, Delete) in .NET Core with a SQL database, you can follow these steps:

Set up your SQL database:Install SQL Server or any other supported SQL database.
Create a database and tables to store your data.


Install the required NuGet packages:Entity Framework Core: Microsoft.EntityFrameworkCore.SqlServer package.


Create a data model:Define your data model classes that represent the tables in your database.
Annotate the properties with attributes to define relationships and constraints.


Create a database context:Create a class that inherits from DbContext in Entity Framework Core.
Define a DbSet property for each data model class.


Configure the database connection:In the appsettings.json file, add a connection string for your database.


Register the database context:In the Startup.cs file, add the database context to the dependency injection container.


Perform CRUD operations:

Create (Insert):Instantiate the database context through dependency injection.
Create a new instance of the data model class and set its properties.
Add the new instance to the DbSet property of the database context.
Call SaveChangesAsync() method on the database context to persist the changes to the database.


Read (Select):Instantiate the database context through dependency injection.
Use LINQ queries or methods to retrieve data from the DbSet property of the database context.


Update (Modify):Instantiate the database context through dependency injection.
Retrieve an entity from the database using the DbSet property or other query methods.
Modify the retrieved entity's properties.
Call SaveChangesAsync() method on the database context to persist the changes to the database.


Delete (Remove):Instantiate the database context through dependency injection.
Retrieve an entity from the database using the DbSet property or other query methods.
Remove the entity from the DbSet property.
Call SaveChangesAsync() method on the database context to persist the changes to the database.

Note: The code snippets for CRUD operations may vary depending on the specific implementation and design choices made in your application. The above steps provide a general outline to get started with CRUD operations in .NET Core with a SQL database using Entity Framework Core.

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