| 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
- 파이썬
- 머신러닝
- SQLite
- 전처리
- solvesql
- airflow 설치
- 데이터분석
- 데이터리안 웨비나
- 데이터시각화
- Limit
- SUM
- join
- matplotlib
- PostgreSQL
- not in
- 그로스해킹
- having
- mysql :=
- SQL
- GROUPBY
- 다중 JOIN
- seaborn
- TRUNCATE
- Round
- MySQL
- hackerrank
- Oracle
- 프로그래머스
- pandas
- 결측값
Archives
- Today
- Total
Milky's note
[HackerRank](E) Revising Aggregations - The Count Function 본문
SQL/SQL 코딩 테스트-HackerRank
[HackerRank](E) Revising Aggregations - The Count Function
밀뿌 2022. 3. 25. 15:39Revising Aggregations - The Count Function | HackerRank
Query the number of cities having populations larger than 100000.
www.hackerrank.com
[문제]
Query a count of the number of cities in CITY having a Population larger than 100,000.
Input Format
The CITY table is described as follows:
[답]
-mysql
select count(name) from city
where population > 100000'SQL > SQL 코딩 테스트-HackerRank' 카테고리의 다른 글
| [HackerRank](E) Revising Aggregations - Averages (0) | 2022.03.25 |
|---|---|
| [HackerRank](E) Revising Aggregations - The Sum Function (0) | 2022.03.25 |
| [HackerRank](M) Binary Tree Nodes (0) | 2022.03.18 |
| [HackerRank](M) The PADS (0) | 2022.03.18 |
| [HackerRank](E) Type of Triangle (0) | 2022.03.18 |
'SQL/SQL 코딩 테스트-HackerRank' Related Articles
more
Comments