SQL_프로그래머스_조건에 맞는 도서와 저자 리스트 출력하기 풀이 -- MYSQL SELECT B.BOOK_ID , A.AUTHOR_NAME , DATE_FORMAT(B.PUBLISHED_DATE, '%Y-%m-%d') AS PUBLISHED_DATE FROM BOOK B JOIN AUTHOR A ON B.AUTHOR_ID = A.AUTHOR_ID WHERE B.CATEGORY = '경제' ORDER BY B.PUBLISHED_DATE ASC; -- ORACLE SELECT B.BOOK_ID , A.AUTHOR_NAME , TO_CHAR(B.PUBLISHED_DATE, 'YYYY-MM-DD') AS PUBLISHED_DATE FROM BOOK B JOIN AUTHOR A ON B.AUTHOR_ID = A.AUTHOR_ID WHERE B.CATEGORY = '경제' ORDER BY B.PUBLISHED_DATE ASC; BOOK 테이블의 CATEGORY컬럼값이 경제인 데이터를 매칭해서...