[프로그래머스 - ORACLE] 중복 제거하기

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CREATE 문

CREATE TABLE ANIMAL_INS (
ANIMAL_ID			VARCHAR2(50)	NOT NULL,
ANIMAL_TYPE			VARCHAR2(50)	NOT NULL,
DATETIME			TIMESTAMP 	NOT NULL,
INTAKE_CONDITION		VARCHAR2(50)	NOT NULL,
NAME				VARCHAR2(50)	NULL,
SEX_UPON_INTAKE			VARCHAR2(50)	NOT NULL
)

 

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• 내 풀이

SELECT
	// DISTINCT 중복 제거 함수
    COUNT(DISTINCT NAME) AS COUNT
FROM ANIMAL_INS 
WHERE NAME IS NOT NULL