## `💬 문제` [https://school.programmers.co.kr/learn/courses/30/lessons/131114](https://school.programmers.co.kr/learn/courses/30/lessons/131114) <br> ## `💬 풀이` ```sql SELECT WAREHOUSE_ID, WAREHOUSE_NAME, ADDRESS, IFNULL(FREEZER_YN,'N') AS FREEZER_YN FROM FOOD_WAREHOUSE WHERE ADDRESS LIKE '경기도%' ORDER BY WAREHOUSE_ID ``` <br> ## `💬 알게된 문법` ### ✅ IFNULL - 만약 NULL값이라면 해당 값을 default값으로 채워 SELECT한다.