[NULL 처리하기]
https://school.programmers.co.kr/learn/courses/30/lessons/59410
[작성한 코드]SELECT ANIMAL_TYPE , NVL(NAME,'No name') AS NAME , SEX_UPON_INTAKE FROM ANIMAL_INS ORDER BY ANIMAL_ID;
[나머지가 1이 되는 수 찾기]
https://school.programmers.co.kr/learn/courses/30/lessons/87389
[작성한코드]class Solution { public int solution(int n) { int answer = 0; for (int x = 2; x < n; x++) { if (n % x == 1) { answer = x; break; } } return answer; } }