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https://kwanghyung.tistory.com/entry/Oracle-Database-%ED%95%A8%EC%88%98%EB%93%A4 Oracle Database - 함수들 https://kwanghyung.tistory.com/entry/Oracle-Database-SELECT%EB%AC%B8-IS-NULLINORDER-BY-%EB%93%B1-%EB%AC%B8%EB%B2%95%EB%93%A4 Oracle Database-SELECT문 IS NULL,IN,ORDER BY 등 문법들 https://kwanghyung.. kwanghyung.tistory.com ABS ABS( 절대값을 구할 숫자) : 절대값을 구해주는 함수 결과값은 NUMBER 자료형으로 반환 SELECT ABS(-10) FRO..