Getting values where values = 0 in C# ms access

con_string.ConnectionString = @"Provider = Microsoft.ACE.OLEDB.12.0;Data Source =|DataDirectory|\Restaurant.accdb;Persist Security Info=False";
            con_string.Open();
            DataSet dsa1 = new DataSet();
            DataTable dt1 = new DataTable();
            dsa1.Tables.Add(dt1);
            OleDbDataAdapter da1 = new OleDbDataAdapter();
            da1 = new OleDbDataAdapter(string.Format("SELECT [column3] As [Tables],count(Tables) As [QTY] from [Total] Where [column3] like 'DineIn%' Or [Date] Between #{0}# And #{1}# Or not [column1] = 0 Group By [column3]", DateTime.Now.ToShortDateString(), DateTime.Now.AddDays(1).ToShortDateString()), con_string);
            da1.Fill(dt1);
            con_string.Close();
            int sum1 = 0;
            for (int i = 0; i < dsa1.Tables[0].Rows.Count; ++i)
            {
                sum1 += Convert.ToInt32(dsa1.Tables[0].Rows[i][1].ToString());
            }
            Dinein_Orders.Text = sum1.ToString();