[오라클] 주말 구하기
SELECT TO_CHAR(YYYYMMDD, 'YYYYMMDD') AS HOLIDAY_DT , DECODE( TO_CHAR(YYYYMMDD, 'd'), '1', '일요일', '7', '토요일') AS HOLIDAY_NM FROM ( SELECT START_DATE + LEVEL - 1 YYYYMMDD FROM ( SELECT TO_DATE('20200101', 'YYYYMMDD') START_DATE , TO_DATE('20201231', 'YYYYMMDD') END_DATE FROM DUAL ) CONNECT BY LEVEL
개발/SQL
2020. 12. 21. 16:39