一、select goods_id,goods_name,goods_price from tdb_goods where goods_price >= (select round(avg(goods_price),2) from tdb_goods);

二、select goods_id,goods_name,goods_price from tdb_goods where goods_price >= (select round(avg(goods_price),2) );

求大神指點，第二句和第一句缺了from tdb_goods，但是沒報錯，還把所有記錄顯示出來了，請教下是什么意思，腦殼都大了沒看出來