I am working on a c# service(built as a console app for now for debugging) that will is polling against a DB tables row count. Upon a new row being added to the table(INSERT) the application will kick off to begin some other processing however i'm having issue with the polling logic.

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
                //1 second pause
                SqlConnection conn = new SqlConnection(@"OMITTED"); //connection to DB
                conn.Open();
                SqlDataAdapter adapter = new SqlDataAdapter("OMITTED", conn); //Query to fil poll table comparator

                DataTable table = new DataTable(); //establishing new instance to fill
                adapter.Fill(table);

                int prevRowCount = table.Rows.Count; // establishing comparator value

                while (true) //loop
                {
                adapter.Fill(table);
                if (table.Rows.Count > prevRowCount)
                    {
                    
                    Console.WriteLine("New records");
                    
                    prevRowCount = table.Rows.Count;

                    }
                
                Thread.Sleep(1000); //1 second pause

                }
            
        }
    }
}

Watching the data table variable in debug and prevrowcount, they both seem so be sitting at 2, however the if is still stepped into. And then upon the next adapter.Fill it seems the value is getting incremented by the row count every iteration. So my question(s):
When using this structure do I need to clear the instance of the variable every loop after the if, if so how?
Why is the if performing upon the first if iteration when the data table variable only has 2 rows and the prevrowcount variable is 2?
I've tried moving the adapter fill, removing it from the while. Different ways of setting, I am not understanding why the if is being performed.