use arwiki_p;

select page_title, (select SUBSTRING_INDEX(cl_to, '_', 7) from categorylinks where cl_from = page_id limit 1)

from page

where page_namespace = 0

and page_is_redirect = 0

and page_id in (select cl_from from categorylinks where cl_from = page_id and cl_to = "مقالات_بحاجة_لشريط_بوابات")

and (select SUBSTRING_INDEX(cl_to, '_', 5) from categorylinks where cl_from = page_id limit 1) in (select page_title from

                                                                                                                 page 

                                                                                                                 where page_namespace = 100

                                                                                                                 and page_is_redirect = 0

                                                                                                                 );