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set echo on;
alter session set nls_language = english; alter session set nls_date_format = 'DD-MON-YYYY'; alter session set nls_date_language = english;
/* SELECT GROUP BY */ SELECT FLC, COUNT(*) FROM FLUG GROUP BY FLC;
/* SELECT GROUP BY WHERE */ SELECT FLC, COUNT(*) FROM FLUG WHERE (VON = 'FRA') GROUP BY FLC;
/* SELECT GROUP BY WHERE NOTHING */ SELECT FLC, COUNT(*) FROM FLUG WHERE (VON = 'ZZZ') GROUP BY FLC;
/* SELECT GROUP BY HAVING */ SELECT PNR, SUM(MEILEN) FROM BUCHUNG GROUP BY PNR HAVING COUNT (*) = 1;
/* SELECT GROUP BY HAVING WHERE */ SELECT VON, MAX(PREIS) FROM BUCHUNG WHERE (BNR > 20) GROUP BY VON HAVING COUNT (*) > 2;
rollback;
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