Answer by Daniel Pérez Rada for How to feed mysql queries from bash

For big queries in a bash script, you can try:

read -d '' SQL_QUERY_1 << EOF

SELECT prod.id as id, prod.title as title, comp.name as company, pho.id as photo_id, pho.image as photo_name
FROM products as prod
JOIN accounts as comp
ON comp.id = prod.account_id
JOIN photos as pho
ON pho.id = prod.featured_photo_id;

EOF

echo ${SQL_QUERY_1} | mysql