delete from ec_cat_mailing_lists where user_id=:user_id and subsubcategory_id=:subsubcategory_id delete from ec_cat_mailing_lists where user_id=:user_id and subcategory_id=:subcategory_id and subsubcategory_id is null delete from ec_cat_mailing_lists where user_id=:user_id and category_id is null