with cte as (select h.hacker_id,h.name,count(c.challenge_id) total from hackers h join challenges c on h.hacker_id=c.hacker_id group by h.hacker_id,h.name), cte2 as (select distinct h.hacker_id, h.name, h.total from cte as h, cte as b where h.hacker_id <> b.hacker_id...
continued to invest in helping developers by expanding challenges to a variety of different technical tracks, like SQL challenges, tutorial challenges, and more. These new challenges doubled down on helping developers improve their skills by matching developer skill proficiency to the right challenges....
The solutions of all SQL hackerrank challenges using MySQL environment mysqlchallengesqlsolutionstutorialshackerrankproblem-solvinghackerrank-solutionshackerrank-challengeshackerrank-sqlhackerrank-sql-solutionsmysql-environmentsql-challengesselect-challenges UpdatedApr 30, 2024 ...
sql/basic_select week_of_code_37 CONTRIBUTING.md CONTRIBUTORS.md LICENSE README.md Repository files navigation README License HackerRank A collection of solutions and explanations of Hackerrank.com problems in many languages. Solved problems of HackerRank. www.hackerrank.com Contributions To se...
SQL Databases Linux Shell Functional Programming Regex Preparation Kits View all kits 1 Week Preparation Kit Challenges:21 , Attempts:1038364 , Mock Tests:0 Problem Solving (Basic) Problem Solving (Intermediate) +1 1 Month Preparation Kit
30dayschallange hackerrank-sql hackerrank-statistics hackerrank-sql-solutions hackerrank-solutions-github sql-hackerrank hackerrank-sql-challenge hackerrank-solution hackerrank-sql-solutions-oracle hackerrank-sql-certificate hackerrank-sql-solution hackerrank-sql-problems hackerrank-sql-challenges hackerrank-sql-...
From interns to experienced hires, evaluate for any developer role by sending technical challenges and/or conducting live interviews. Job Family Job Role Software Engineering Software Engineer Software Engineer Intern Can’t find the role you’re looking for?
A project of solved Java/SQL challenges from HackerRank website javajava-practicesqlhackerrankcoding-challengeshackerrank-solutionshackerrank-challengeshackerrank-practicesql-challengesjava-challengesinterview-preparation-kithackerrank-solutions-githubhackerrank-solutions-for-javahackerrank-all-solutionshackerrank-practice...
301 efficient solutions to HackerRank problems 10 Days of Statistics (Complete) 30 Days of Code (28 solutions) Algorithms (80 solutions) Cracking the Coding Interview (Complete) Data Structures (41 solutions) Java (Complete) SQL (40 solutions) Solutions are coded using Java 8 SQL solutions are...
Write a query to output the start and end dates of projects listed by the number of days it took to complete the project in ascending order.