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[SQL]
SELECT HNAME,
ADDRESS,
CUSTOM_SERVICE,
HIREDATE
FROM EMP
WHERE HEAD IN ('교육사업본부', '신사업본부')
ORDER BY CASE WHEN ADDRESS = '부산' THEN 1
WHEN ADDRESS = '대전' THEN 2
WHEN ADDRESS = '인천' THEN 3
WHEN ADDRESS = '서울' THEN 4 END ASC,
CUSTOM_SERVICE DESC;