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목록MySQL (2)
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[HackerRank]Top Competitors(mysql풀이)
https://www.hackerrank.com/challenges/full-score/problem?isFullScreen=true Top Competitors | HackerRank Query a list of top-scoring hackers. www.hackerrank.com Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your outp..
[HackerRank] The Report(mysql풀이)
나에게 꽤나 어려웠던 문제.. https://www.hackerrank.com/challenges/the-report/problem The Report | HackerRank Write a query to generate a report containing three columns: Name, Grade and Mark. www.hackerrank.com Ketty gives Eve a task to generate a report containing three columns: Name, Grade and Mark. Ketty doesn't want the NAMES of those students who received a grade lower than 8. The report must be in de..