MySQL的GROUP BY產品

Question

table: 
id p_name  p_price 
1 tan   1 
2 soap   1 
3 pro tan 01 2 
4 pro tan 02 3 
5 pro tan 03 4 

我怎麼組就是我想要的HTML結果包含pro tan產品，一些

product name  price 
tan    1 
soap    1 
pro tan   9 

PHP：

$q_products = $db->query("SELECT * FROM p_products 
          GROUP BY p_name 
          HAVING LIKE 'pro tan%'"); 
// follow by while loop for echoing 

Answer 1

select s.p_name, sum(s.p_price) 
from 
    (select left(p_name, 7) as p_name, 
    p_price from products) s 
group by s.p_name; 

應該做些什麼你要。

Answer 2

OK，我不能發表評論還，但試試這個

$q_products = $db->query("SELECT * FROM p_products GROUP BY p_name having p_name LIKE 'pro tan%'");