SQL Oblicz dni robocze między dwiema datami z wyłączeniem weekendów i święta
-- All dates between 01/07/2021 and 15/07/2021 excluding weekends
SELECT CAL_DATE
FROM (
SELECT to_date('01/07/2021', 'DD/MM/YYYY') + ROWNUM - 1 AS CAL_DATE
FROM ALL_OBJECTS
WHERE ROWNUM <= to_date('15/07/2021', 'DD/MM/YYYY')
- to_date('01/07/2021', 'DD/MM/YYYY') + 1)
WHERE to_char(CAL_DATE, 'DY', 'NLS_DATE_LANGUAGE=AMERICAN') NOT IN ('SAT', 'SUN');
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