혜온의 이것저것

https://www.hackerrank.com/challenges/weather-observation-station-1/problem?isFullScreen=true Weather Observation Station 1 | HackerRank Write a query to print the CITY and STATE for each attribute in the STATION table. www.hackerrank.com 문제 Query a list of CITY and STATE from the STATION table. The STATION table is described as follows: where LAT_N is the northern latitude and LONG_W is the wes..

https://www.hackerrank.com/challenges/japanese-cities-name/problem?isFullScreen=true Japanese Cities' Names | HackerRank In this challenge, you will query a list of all the Japanese cities' names. www.hackerrank.com 문제 Query the names of all the Japanese cities in the CITY table. The COUNTRYCODE for Japan is JPN. The CITY table is described as follows: 풀이 select name from city where countrycode ..

https://www.hackerrank.com/challenges/japanese-cities-attributes/problem?isFullScreen=true Japanese Cities' Attributes | HackerRank Query the attributes of all the cities in Japan. www.hackerrank.com 문제 Query all attributes of every Japanese city in the CITY table. The COUNTRYCODE for Japan is JPN. The CITY table is described as follows: 풀이 select * from city where countrycode = 'JPN'

https://www.hackerrank.com/challenges/select-by-id/problem?isFullScreen=true Select By ID | HackerRank Query the details of the city with ID 1661. www.hackerrank.com 문제 Query all columns for a city in CITY with the ID 1661. The CITY table is described as follows: 풀이 select * from city where id = 1661

https://www.hackerrank.com/challenges/select-all-sql/problem?isFullScreen=true Select All | HackerRank Query all columns for every row in a table. www.hackerrank.com 문제 Query all columns (attributes) for every row in the CITY table. The CITY table is described as follows: 풀이 select * from city