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May 22nd, 2019
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  1. select s.kodsali,ch.nazwa FROM sala s,charakter ch,zajecia z
  2. where s.id_sala=z.id_sala and z.id_charakter = ch.id_charakter and z.id_wykladowca in (select z.id_wykladowca from zajecia z where z.dzientyg like 'WTO')
  3. group by s.kodsali,ch.nazwa;
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