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목록데이터분석 (95)
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Weather Observation Station 1 Problem Weather Observation Station 1 | HackerRank Write a query to print the CITY and STATE for each attribute in the STATION table. www.hackerrank.com Query a list of CITY and STATE from the STATION table. The STATION table is described as follows: Solution SELECT City, State FROM Station
Japanese Cities' Names Problem Japanese Cities' Names | HackerRank In this challenge, you will query a list of all the Japanese cities' names. www.hackerrank.com 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: Solution SELECT NAME FROM CITY WHERE countrycode = 'JPN'
Japanese Cities' Attributes Problem Query all attributes of every Japanese city in the CITY table. The COUNTRYCODE for Japan is JPN. The CITY table is described as follows: Japanese Cities' Attributes | HackerRank Query the attributes of all the cities in Japan. www.hackerrank.com Solution SELECT * FROM CITY WHERE countrycode = 'JPN'
Select By ID Problem Select By ID | HackerRank Query the details of the city with ID 1661. www.hackerrank.com - Solution SELECT * FROM City WHERE Id=1661
Select All Problem Select All | HackerRank Query all columns for every row in a table. www.hackerrank.com Query all columns (attributes) for every row in the CITY table. The CITY table is described as follows: SOLUTION SELECT * FROM city
Revising the Select Query II Problem Revising the Select Query II | HackerRank Query the city names for all American cities with populations larger than 120,000. www.hackerrank.com Query the NAME field for all American cities in the CITY table with populations larger than 120000. The CountryCode for America is USA. The CITY table is described as follows: SOLUTION SELECT NAME FROM CITY WHERE popu..
Revising the Select Query I Problem Query all columns for all American cities in the CITY table with populations larger than 100000. The CountryCode for America is USA. The CITY table is described as follows: Solution SELECT * FROM city WHERE population > 100000 AND countrycode = 'USA'