Have you worked on projects involving databases?

Yes, I have worked on projects where I used databases for storing and processing data. For example, in C#, ORM libraries like Entity Framework are commonly used, which allow working with databases through objects and LINQ queries.

An example of simple usage of Entity Framework to get a list of users:

using(var context = new AppDbContext())
{
    var users = context.Users.ToList();
    foreach(var user in users)
    {
        Console.WriteLine(user.Name);
    }
}

I am also familiar with writing SQL queries, database migrations, and query optimization within C# projects.