Using Entity Framework Core for Data Access & Relational Mapping/

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Challenge Solution: Query Data

Challenge Solution: Query Data

Review the solution to querying data from a school database.

We'll cover the following...

Overview

Let’s solve the tasks with the project below.

{
    "version": "0.2.0",
    "configurations": [
        {
            // Use IntelliSense to find out which attributes exist for C# debugging
            // Use hover for the description of the existing attributes
            // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
            "name": ".NET Core Launch (console)",
            "type": "coreclr",
            "request": "launch",
            "preLaunchTask": "build",
            // If you have changed target frameworks, make sure to update the program path.
            "program": "${workspaceFolder}/bin/Debug/net6.0/QueryData.dll",
            "args": [],
            "cwd": "${workspaceFolder}",
            // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
            "console": "internalConsole",
            "stopAtEntry": false
        },
        {
            "name": ".NET Core Attach",
            "type": "coreclr",
            "request": "attach"
        }
    ]
}
Solution for querying from the school data

Click the “Run” button above, then execute the command below in the terminal:

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dotnet run

A snippet from the output is below:

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LASTNAME FIRSTNAME      DEPARTMENT-TITLE
Olu     Abraham         Engineering
Umoh    Aniekan         Medicine
---STUDENTS---
DEPARTMENTS     STUDENTS-FULLNAME
Engineering     Rock Prince
Medicine        Crystal Susan
Medicine        Ayorinde Femi
Engineering     Rawlins Bob
Medicine        Kipp Johanesson
Engineering     Okon Blessing

Solution breakdown

Let’s review the tasks required in the challenge.

Fetch and display instructors and their departments

Note the following in Program.cs of the project: ...