목록데이터분석/practice_query (83)

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Hackerrank | MySQL | Select All

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
데이터분석/practice_query 2020. 8. 27. 18:00
Hackerrank | MySQL | Revising the Select Query II

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..
데이터분석/practice_query 2020. 8. 27. 17:55
Hackerrank | MySQL | Revising the Select Query I

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'
데이터분석/practice_query 2020. 8. 27. 17:51
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