HackerRank SQL Solution - Basic Select - Weather Observation Station 5

• 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 DEF, ABC, PQRS, and WXY, with lengths 3, 3, 4, and 3. The longest name is PQRS, but there are 3 options for the 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.

Solution:

/* Editor - MySQL */

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;

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