DB Search, C# - rextester

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            Database db = new Database();
            Item i1 = new Item("Shoes", "Clothing", 49.99m, DateTime.Now);
            Item i2 = new Item("Shirt", "Clothing", 9.99m, DateTime.Now);
            Item i3 = new Item("Pants", "Clothing", 39.99m, DateTime.Now);
            Item i4 = new Item("Socks", "Clothing", 19.99m, DateTime.Now);
            Item i5 = new Item("Ties", "Clothing", 5.99m, DateTime.Now);
            db.items.Add(i1);
            db.items.Add(i2);
            db.items.Add(i3);
            db.items.Add(i4);
            db.items.Add(i5);
            
            IEnumerable<Item> search = db.SearchDatabase("Shoes");
            
            foreach (Item i in search)
            {
                Console.Write(i.ItemId.ToString() + ", ");
                Console.Write(i.Name + ", ");
                Console.Write(i.Category + ", ");
                Console.Write(i.Price.ToString() + ", ");
                Console.Write(i.DateBought.ToString() + ", ");
            }
            
        }
    }
    
    public class Database
    {
        public List<Item> items;
        public Database()
        {
            this.items = new List<Item>();
        }
        
        public IEnumerable<Item> SearchDatabase(string name)
        {
            // Open connection to database with using statement
            name = name.ToUpper();
            IEnumerable<Item> foundItems = this.items.Where(i => i.Name == name).Select(n => n);
            return foundItems;
        }
    }
    
    public class Item
    {
        public Guid ItemId { get; set; }
        public string Name { get; set; }
        public string Category { get; set; }
        public decimal Price { get; set; }
        public DateTime DateBought { get; set; }
        
        public Item()
        {
            
        }
        public Item(string name)
        {
            
        }
        public Item(string name, string cat, decimal price, DateTime date)
        {
            ItemId = new Guid();
            Name = name.ToUpper();
            Category = cat.ToUpper();
            Price = price;
            DateBought = date;
        }
    }
}

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Compilation time: 0,17 sec, absolute running time: 0,11 sec, cpu time: 0,11 sec, average memory usage: 14 Mb, average nr of threads: 3