Creative Code

SELECT B.ANIMAL_ID, B.NAME FROM ANIMAL_INS A RIGHT OUTER JOIN ANIMAL_OUTS B ON A.ANIMAL_ID = B.ANIMAL_ID WHERE A.ANIMAL_ID IS NULL ORDER BY B.ANIMAL_ID;

SELECT DISTINCT A.CAR_ID FROM CAR_RENTAL_COMPANY_CAR A ,CAR_RENTAL_COMPANY_RENTAL_HISTORY B WHERE A.CAR_ID = B.CAR_ID AND A.CAR_TYPE = '세단' AND to_char(B.START_DATE,'YYYY-MM') LIKE '2022-10' ORDER BY A.CAR_ID DESC;

SELECT B.FOOD_TYPE, B.REST_ID, B.REST_NAME, B.FAVORITES FROM (SELECT FOOD_TYPE, MAX(FAVORITES) AS FAVORITES FROM REST_INFO GROUP BY FOOD_TYPE) A, REST_INFO B WHERE A.FOOD_TYPE = B.FOOD_TYPE AND A.FAVORITES = B.FAVORITES ORDER BY A.FOOD_TYPE DESC;

SELECT F.USER_ID, F.NICKNAME, SUM(B.PRICE) AS TOTAL_SALES FROM USED_GOODS_BOARD B, USED_GOODS_USER F WHERE (B.WRITER_ID = F.USER_ID) AND B.STATUS = 'DONE' GROUP BY F.USER_ID, F.NICKNAME HAVING SUM(B.PRICE) >= 700000 ORDER BY TOTAL_SALES;

SELECT B.CATEGORY AS CATEGORY, SUM(BS.SALES) FROM BOOK B, BOOK_SALES BS WHERE B.BOOK_ID = BS.BOOK_ID AND to_char(BS.SALES_DATE,'YYYY-MM') LIKE '2022-01%' GROUP BY B.CATEGORY ORDER BY B.CATEGORY;

SELECT ANIMAL_ID, AI.NAME FROM ANIMAL_INS AI JOIN ANIMAL_OUTS AO USING (ANIMAL_ID) WHERE AO.DATETIME IS NOT NULL ORDER BY (AO.DATETIME - AI.DATETIME) DESC fetch first 2 rows only;