postgresql7.2 update cr_keywords set heading = :heading where keyword_id = :category_id update cr_keywords set description = :description where keyword_id = :category_id select keyword_id as category_id, parent_id, heading, description, has_children from cr_keywords where keyword_id = :category_id select keyword_id as category_id, parent_id, heading, description, has_children from cr_keywords where $where_str