Items with many interwikis but without a Czech interwiki

SQL

use wikidatawiki_p; 
select  grp.ips_item_id, grp.nn, eng.en_title 
from 
(
  select ips_item_id, count(*) as nn
  from wb_items_per_site
  where ips_site_id in ('enwiki', 'dewiki', 'frwiki', 'eswiki', 'ruwiki', 'itwiki', 'jawiki', 'nlwiki', 
                        'ptwiki', 'plwiki', 'zhwiki', 'svwiki', 'shwiki', 'arwiki', 'fawiki', 'hewiki', 
                        'ukwiki', 'kowiki', 'huwiki', 'trwiki', 'cawiki', 'fiwiki', 'nowiki', 'cswiki',
                        'simplewiki', 'idwiki', 'srwiki', 'rowiki', 'dawiki', 'bgwiki', 'thwiki', 'skwiki', 
                        'eowiki', 'elwiki', 'euwiki', 'ltwiki', 'hrwiki', 'slwiki', 'etwiki', 'hywiki', 'mswiki', 
                        'glwiki', 'azwiki', 'kawiki', 'hiwiki', 'lvwiki', 'kkwiki', 'bewiki', 'mlwiki', 'bnwiki', 
                        'tawiki', 'sqwiki' )                      
  group by ips_item_id      
  having nn > 20) as grp,
(
  select ips_item_id as ii, ips_site_page as cs_title
  from wb_items_per_site
  where ips_site_id = 'cswiki'   ) as cs,
( 
 select ips_item_id as iii, ips_site_page as en_title
    from wb_items_per_site
    where ips_site_id = 'enwiki' ) as eng   
where    grp.ips_item_id = cs.ii 
   and   grp.ips_item_id = eng.iii
   and   cs_title = '' 
limit 1000;
SQL

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