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Feb 14th, 2018
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PL/SQL 0.18 KB | None | 0 0
  1. SELECT z.data,z.rodzaj,COUNT(g.ID_ZAJECIA)
  2. FROM ZAJECIA z, GRUPA_ZAJECIOWA g
  3. WHERE z.ID_ZAJECIA=g.ID_ZAJECIA
  4. AND (SELECT COUNT(*) FROM GRUPA_ZAJECIOWA G)>1
  5. GROUP BY z.data,z.rodzaj;
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