kimki1124/oracle_09_10.sql

Created March 8, 2017 12:34

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[ORACLE] SQL 함수 (날짜 함수, 변환 함수, NULL 관련 함수, 기타 함수)

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oracle_09_10.sql

	SELECT NVL(MANAGER_ID, EMPLOYEE_ID)
	FROM EMPLOYEES
	WHERE MANAGER_ID IS NULL;

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