count1 = (int)Ky.SQLServerDAL.SqlHelper.ExecuteScalar(CommandType.Text, "select count(*) from olddisease where  numofyes >='2' and numofyes <='10' ", (SqlParameter[])null);
这里求数据库内numofyes 大于等于2和小于等于10的个数？求助高手是我语法有问题还是哪错了？万分感谢..........