ASP.NET MVC C# 将代码从访问 mySQL 数据库更改为 MSSQL 数据库

Question

I have an application that I used to connect to a mySQL database. I have installed the MySQL.Data package and I use this code to build my connection:

services.AddScoped<System.Data.IDbConnection>((s) =>
        {
            IDbConnection conn = new MySqlConnection(Configuration.GetConnectionString("databasename"));
            conn.Open();
            return conn;
        });

This works fine as I am able to read/write data from the database.

Now, I need to have the same application access a MS SQL database. The tables are all the same and the fields on each table are the same as well. I am having a hard time finding what I should change my code to (or what package I should include). When I remove the MySQL.Data package, the MySqlConnection function becomes invalid (as would be expected).

Any idea what package to include and what function to use to establish the connection?

Any assistance is greatly appreciated. Thank you!

EDIT #1

I found an old stackoverflow post (I should have referenced it here but I closed the window) that talks about this very issue. The suggestion was to add

using System.Data.SqlClient;

and then change the assignment code to

IDbConnection conn = new SqlConnection(Configuration.GetConnectionString("databasename"));

I made these changes and now I get this error within the code:

Im at a loss as to how to resolve this. I verified that my project is in framework .NET core 3.1

Answer 1

Not sure about size of your project and detailed requirements but I would suggest to use libraries like:

Entity Framework - no SQL knowledge needed, can connect to any Db technology, almost no code changes required when switching between Db providers

or

Dapper - fast lightweight also supports multiple Db providers but you need to write correct SQL commands yourself specific for each Db technology you use