목록join (5)

Milky's note

[HackerRank](M) Placements

https://www.hackerrank.com/challenges/placements/problem?isFullScreen=true Placements | HackerRank Write a query to output the names of those students whose best friends got offered a higher salary than them. www.hackerrank.com [문제] You are given three tables: Students, Friends and Packages. Students contains two columns: ID and Name. Friends contains two columns: ID and Friend_ID (ID of the ONL..
SQL/SQL 코딩 테스트-HackerRank 2022. 3. 31. 15:33
[HackerRank](E) Average Population of Each Continent

https://www.hackerrank.com/challenges/average-population-of-each-continent/problem?isFullScreen=true&h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen Average Population of Each Continent | HackerRank Query the names of all continents and their respective city populations, rounded down to the nearest integer. www.hackerrank.com [문제] Given the CITY and COUNTRY tables, query the names of all t..
SQL/SQL 코딩 테스트-HackerRank 2022. 3. 25. 23:06
[HackerRank](E) African Cities

https://www.hackerrank.com/challenges/african-cities/problem?isFullScreen=true&h_r=next-challenge&h_v=zen African Cities | HackerRank Query the names of all cities on the continent 'Africa'. www.hackerrank.com [문제] Given the CITY and COUNTRY tables, query the names of all cities where the CONTINENT is 'Africa'. Note: CITY.CountryCode and COUNTRY.Code are matching key columns. Input Format The CI..
SQL/SQL 코딩 테스트-HackerRank 2022. 3. 25. 22:42
[HackerRank](E) Population Census

https://www.hackerrank.com/challenges/asian-population/problem?isFullScreen=true Population Census | HackerRank Query the sum of the populations of all cities on the continent 'Asia'. www.hackerrank.com [문제] Given the CITY and COUNTRY tables, query the sum of the populations of all cities where the CONTINENT is 'Asia'. Note: CITY.CountryCode and COUNTRY.Code are matching key columns. Input Forma..
SQL/SQL 코딩 테스트-HackerRank 2022. 3. 25. 22:37
Prev 1 2 Next