Find the attribute_id by attribute_code

Question

I need to find the attribute_id values of the attributes image, small_image and thumbnail. I know them for my database - 85, 86 and 87, but I need to make my query dynamic, instead of with hard-coded values. What I struggle with is to find in which table the attributes are stored. I checked catalog_product_attribute but there is no column with the name/code of the attributes.

I need to acquire them as an SQL query, not as Mage::... PHP code. A sample SQL query code or any other guidance will be very helpful.

Answer 1

$attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', $attributeCode);
$id = $attribute->getId();

if $id is null then the attribute does not exist.
It works the same for getting category attributes, customer attributes and customer address attributes.

$attribute = Mage::getModel('eav/config')->getAttribute('catalog_category', 'is_anchor');
$attribute = Mage::getModel('eav/config')->getAttribute('customer', 'gender');
$attribute = Mage::getModel('eav/config')->getAttribute('customer_address', 'postcode');

[EDIT]
Apparently I can't read. I missed the line that stated sql query.
Here is a query also:

SELECT 
    e.attribute_id 
FROM 
    eav_attribute e
LEFT JOIN
    eav_entity_type t 
ON e.entity_type_id = t.entity_type_id
WHERE 
    e.attribute_code = 'image' AND
    t.entity_type_code = 'catalog_product'

Answer 2

I used this codes for getting the attribute ID in eav_attribute tables

$attribute_code = 'image';

$eavCollections = Mage::getModel('eav/entity_attribute')->getCollection()
                    ->addFieldToFilter('attribute_code', array('eq'=> $attribute_code ));

                foreach($eavCollections as $eavCollection){
                   $attribute_id = $eavCollection['attribute_id']; //get the attribute id
                   echo $attribute_id;
                }