How are product attributes and attribute options stored in Magento database?

Question

I am trying to figure out how the linkage between attribute and attribute options, and product and attributes are made in Magento. Is there any reference to how this is work

Answer 1

SELECT pei.value 
FROM `catalog_product_entity_int` pei 
JOIN `eav_attribute` ea 
ON pei.attribute_id = ea .attribute_id 
WHERE pei.entity_id = {your product_id} 
AND ea.attribute_code = '{your attribute_code}'

Note that there are a number of different tables like catalog_product_entity_int depending on the type of the attribute, so one of those other ones could be appropriate.