Multiple databases : Year-wise count of translated articles

SQL

use urwiki_p;
select substr(rev_timestamp,1,4) as yeard,count(substr(rev_timestamp,1,4))
from
    change_tag,change_tag_def,revision,page,actor
where ct_tag_id = ctd_id
	and rev_id=ct_rev_id
    and page_id=rev_page
    and page_namespace=0
    and page_is_redirect=0
    and actor_id=rev_actor
	and ctd_name = "contenttranslation" 
    and rev_parent_id=0
group by substr(rev_timestamp,1,4)
    order by substr(rev_timestamp,1,4);
    
use newiki_p;
select substr(rev_timestamp,1,4) as yeard,count(substr(rev_timestamp,1,4))
from
    change_tag,change_tag_def,revision,page,actor
where ct_tag_id = ctd_id
	and rev_id=ct_rev_id
    and page_id=rev_page
    and page_namespace=0
    and page_is_redirect=0
    and actor_id=rev_actor
	and ctd_name = "contenttranslation" 
    and rev_parent_id=0
group by substr(rev_timestamp,1,4)
    order by substr(rev_timestamp,1,4);
SQL

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