if statement inside mysql query to determine table to select

Question

I would like to perform a if statment in the middle of a query, I need to find out if oc.product_type == 'clothing' or 'other' If it is clothing, then i need to select the specific_clothing table instead of the non_clothing table? I really lost with this one

SELECT o.total, o.shipping, o.order_date
      ,oc.product_type, oc.product_id, oc.quantity, oc.price_per
      ,cu.first_name, cu.last_name, CONCAT(cu.address1, cu.address2) AS address,

//here is where im trying to use if

  if(oc.product_type = 'clothing'
      SELECT style
        FROM specific_clothing
        where oc.product_id = specific_clothing_id) as item 

    FROM order_contents AS oc
    INNER JOIN `orders` as o ON oc.order_id = o.id
    INNER JOIN `customers` AS cu ON o.customer_id=cu.id
    WHERE o.customer_id = '214';

Answer 1

I think you are just looking at adding an outer join to specific_clothing. Something like this:

SELECT o.total, o.shipping, o.order_date
      ,oc.product_type, oc.product_id, oc.quantity, oc.price_per
      ,cu.first_name, cu.last_name, CONCAT(cu.address1, cu.address2) AS address
      ,sc.style AS item

    FROM order_contents AS oc
    INNER JOIN `orders` as o ON oc.order_id = o.id
    INNER JOIN `customers` AS cu ON o.customer_id=cu.id
    LEFT OUTER JOIN specific_clothing sc ON (
        oc.product_id = sc.specific_clothing_id AND
        oc.product_type = 'clothing' )
    WHERE o.customer_id = '214';