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select t1.ks, t1.[# Tasks], coalesce(t2.[# Late], 0) as [# Late] from (SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks) t1 left join (SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks) t2 on t1.ks = t2.ks
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