출처

https://school.programmers.co.kr/learn/courses/30/lessons/276034

문제

풀이

SELECT DISTINCT
    d.ID,
    d.EMAIL,
    d.FIRST_NAME,
    d.LAST_NAME
FROM
    DEVELOPERS d JOIN
    SKILLCODES s ON
    (d.SKILL_CODE & s.CODE) > 0 AND
    s.NAME IN ('Python', 'C#')
ORDER BY d.ID