1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '706'') limit 1' at line 5
[select p2c.categories_id, p.master_categories_id
from products p, products_to_categories p2c
where p.products_id = '9645'
and p.products_id = p2c.products_id
and (p.master_categories_id = '706'' or p2c.categories_id='706'') limit 1]