| 일 | 월 | 화 | 수 | 목 | 금 | 토 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 |
Tags
- 프로그래머스
- TRUNCATE
- Round
- 다중 JOIN
- 그로스해킹
- 결측값
- 데이터리안 웨비나
- SQL
- solvesql
- matplotlib
- Limit
- 파이썬
- Oracle
- MySQL
- pandas
- 데이터시각화
- seaborn
- join
- SQLite
- 전처리
- 데이터분석
- 머신러닝
- having
- SUM
- GROUPBY
- PostgreSQL
- not in
- mysql :=
- airflow 설치
- hackerrank
Archives
- Today
- Total
Milky's note
[HackerRank](E) Population Density Difference 본문
https://www.hackerrank.com/challenges/population-density-difference/problem?isFullScreen=true
Population Density Difference | HackerRank
Query the difference between the maximum and minimum city populations in CITY.
www.hackerrank.com
[문제]
Query the difference between the maximum and minimum populations in CITY.
Input Format
The CITY table is described as follows:
[답]
-mysql
select max(population)-min(population) from city'SQL > SQL 코딩 테스트-HackerRank' 카테고리의 다른 글
| [HackerRank](E) Top Earners (0) | 2022.03.25 |
|---|---|
| [HackerRank](E) The Blunder (0) | 2022.03.25 |
| [HackerRank](E) Japan Population (0) | 2022.03.25 |
| [HackerRank](E) Average Population (0) | 2022.03.25 |
| [HackerRank](E) Revising Aggregations - Averages (0) | 2022.03.25 |
'SQL/SQL 코딩 테스트-HackerRank' Related Articles
more
Comments