MySQL SUM on two columns

[Tompkins Neil]

Hi,

I've the following basic SUM for our products based on a rating.

SELECT SUM(products.rating) AS products_rating
FROM products_sales
INNER JOIN products ON products_sales.products_id = products.products_id
WHERE products.enabled = 1
AND products_sales.language = 'EN'

This works fine, however I also want to SUM the ES language within the same
query.  Is this possible to do, or should I just query the table twice,
replacing the language parameter ?

Thanks.

Neil