CSD C1 - Quarry

SQL

/*
select category.* from categorylinks
join page on cl_from = page_id
join category on page_title = cat_title and cat_pages > cat_subcats
where cl_to = 'Wikipedia_soft_redirected_categories' and cl_type = 'subcat'


select * from category
where cat_pages = 0
and cat_title not in (select page_title from categorylinks join page on cl_from = page_id where cl_to = 'Wikipedia_soft_redirected_categories' and cl_type = 'subcat')

limit 10;
*/

select lt_id from linktarget where lt_title = 'Possibly_empty_category' and lt_namespace = 10
SQL

Checking query status...
