CREATE TABLE [dbo].[TTL_TOTALONLINEDISCOUNT](
        --......
        [iDiscountAmount] [int] NOT NULL CONSTRAINT [DF__TTL_TOTAL__iDisc__77FFC2B3]  DEFAULT ((0)),
        --......
)

using System;
namespace ConsoleTest
{
    public class Program
    {
        delegate void TestDelegate(string str);

        private void Print(string message)
        {
            Console.WriteLine(message);
        }

        private void Test()
        {
            TestDelegate testDelegate1 = new TestDelegate(Print);
            testDelegate1(".Net FrameWork 1.x");

            TestDelegate testDelegate2 = delegate(string str)
            {
                Console.WriteLine(str);
            };
            testDelegate2(".Net FrameWork 2.0");

            TestDelegate testDelegate3 = (str) => Console.WriteLine(str);
            testDelegate3(".Net FrameWork 3.x");
        }

        static void Main()
        {
            Program p = new Program();
            p.Test();
            Console.ReadLine();
        }
    }
}