Filter sqlite database

Have a database example form here https://docs.microsoft.com/xamarin/get-started/tutorials/local-database/

But i want to filter on the month

Something like this i think but how do i do this using a button "SELECT * FROM Person WHERE Maand = 12" don't know if this is correct ?

Have to make a public Task for filter ???

`public class Database
{
readonly SQLiteAsyncConnection _database;

    public Database(string dbPath)
    {
        _database = new SQLiteAsyncConnection(dbPath);
        _database.CreateTableAsync<Person>().Wait();
    }

    public Task<List<Person>> GetPeopleAsync()
    {
        return _database.Table<Person>().ToListAsync();
    }

    public Task<int> SavePersonAsync(Person person)
    {
        return _database.InsertAsync(person);
    }
}

}`

public class Person { [PrimaryKey, AutoIncrement] public int ID { get; set; } public string Name { get; set; } public string Age { get; set; } public string Maand { get; set; } }