[HackerRank] Weather Observation Station 5

joon_1592·2022년 4월 28일
0

SQL

목록 보기
9/11

Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i.e.: number of characters in the name). If there is more than one smallest or largest city, choose the one that comes first when ordered alphabetically.
The STATION
table is described as follows:

where LAT_N is the northern latitude and LONG_W is the western longitude.

Sample Input

For example, CITY has four entries: DEF, ABC, PQRS and WXY.

Sample Output

ABC 3
PQRS 4

Explanation

When ordered alphabetically, the CITY names are listed as ABC, DEF, PQRS, and WXY, with lengths and . The longest name is PQRS, but there are options for shortest named city. Choose ABC, because it comes first alphabetically.

Note
You can write two separate queries to get the desired output. It need not be a single query.

가장 짧은 city를 select하는 쿼리 한개,
가장 긴 city를 select하는 쿼리 한개
총 2개의 쿼리를 짜서 해결

select city, length(city)
from station
order by length(city), city asc
limit 1;

select city, length(city) from station
order by length(city) desc
limit 1;
profile
공부용 벨로그

0개의 댓글