I want help writing C# code

Question

I want help writing C# code, student grade project using Visual Studio with SQL Console app

Answer 1

Start with some pseudocode. What do you need? How does it connect etc?

Once you have that, things should be easier.
If you fall into trouble writing the actual code, please upload it and someone can help you. They won't do your project for you though. That's an important lesson to learn.

Answer 2

Code attempt?

Answer 3

Wow man that's what I would say "to ask a lot" (︺︹︺)

Answer 4

Student Grading System

This program will store student's information and grades.

The program must include the following:

- it must include (concrete classes, abstract classes, interface, the relationships between classes: IS-A, HAS-A, overloading methods, overriding methods, property) and all things that are needed and we covered them during the course.

- You must use SQL or Oracle database to store the data.

- The program must validate the input information.

Exp: the phone number doesn't include letters, the marks in the rang 0 - 100...

The program outputs must include at least the following :(you can add more):