Group_Concat в MySQL
GROUP_CONCAT(eng_category_name SEPARATOR ',') as eng_category_name
Ankur
GROUP_CONCAT(eng_category_name SEPARATOR ',') as eng_category_name
SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY client_id