/hackerrank-sql-solutions

The solutions of all SQL HackerRank challenges updated on 2024

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HackerRank SQL solutions

In this repository, you will find updated SQL solutions for all HackerRank problems as of 2024.
Repo gathered by CodeRankGPT - Solve HackerRank coding problems during your coding interview, in real-time and undetectable 😎

Category Problem Name Link to Problem Link to Solution Score
Basic Select Revising the Select Query I Problem solution-revising-select-query-I.sql 10
Basic Select Revising the Select Query II Problem solution-revising-select-query-II.sql 10
Basic Select Select All Problem solution-select-all.sql 10
Basic Select Select By ID Problem solution-select-by-id.sql 10
Basic Select Japanese Cities' Attributes Problem solution-japanese-cities-attributes.sql 10
Basic Select Japanese Cities' Names Problem solution-japanese-cities-names.sql 10
Basic Select Weather Observation Station 1 Problem solution-weather-observation-station-1.sql 15
Basic Select Weather Observation Station 3 Problem solution-weather-observation-station-3.sql 10
Basic Select Weather Observation Station 4 Problem solution-weather-observation-station-4.sql 10
Basic Select Weather Observation Station 5 Problem solution-weather-observation-station-5.sql 30
Basic Select Weather Observation Station 6 Problem solution-weather-observation-station-6.sql 10
Basic Select Weather Observation Station 7 Problem solution-weather-observation-station-7.sql 10
Basic Select Weather Observation Station 8 Problem solution-weather-observation-station-8.sql 15
Basic Select Weather Observation Station 9 Problem solution-weather-observation-station-9.sql 10
Basic Select Weather Observation Station 10 Problem solution-weather-observation-station-10.sql 10
Basic Select Weather Observation Station 11 Problem solution-weather-observation-station-11.sql 15
Basic Select Weather Observation Station 12 Problem solution-weather-observation-station-12.sql 15
Basic Select Higher Than 75 Marks Problem solution-higher-than-75-marks.sql 15
Basic Select Employee Names Problem solution-employee-names.sql 10
Basic Select Employee Salaries Problem solution-employee-salaries.sql 10
Advanced Select Type of Triangle Problem solution-type-of-triangle.sql 20
Advanced Select The PADS Problem solution-the-pads.sql 30
Advanced Select Binary Tree Nodes Problem solution-binary-tree-nodes.sql 30
Aggregation Revising Aggregations - The Count Function Problem solution-revising-aggregations-the-count-function.sql 10
Aggregation Revising Aggregations - The Sum Function Problem solution-revising-aggregations-the-sum-function.sql 10
Aggregation Revising Aggregations - Averages Problem solution-revising-aggregations-averages.sql 10
Aggregation Average Population Problem solution-average-population.sql 10
Aggregation Japan Population Problem solution-japan-population.sql 10
Aggregation Population Density Difference Problem solution-population-density-difference.sql 10
Aggregation The Blunder Problem solution-the-blunder.sql 15
Aggregation Top Earners Problem solution-top-earners.sql 20
Aggregation Weather Observation Station 2 Problem solution-weather-observation-station-2.sql 15
Aggregation Weather Observation Station 13 Problem solution-weather-observation-station-13.sql 10
Aggregation Weather Observation Station 14 Problem solution-weather-observation-station-14.sql 10
Aggregation Weather Observation Station 15 Problem solution-weather-observation-station-15.sql 15
Aggregation Weather Observation Station 16 Problem solution-weather-observation-station-16.sql 10
Aggregation Weather Observation Station 17 Problem solution-weather-observation-station-17.sql 15
Aggregation Weather Observation Station 18 Problem solution-weather-observation-station-18.sql 25
Aggregation Weather Observation Station 19 Problem solution-weather-observation-station-19.sql 30
Aggregation Weather Observation Station 20 Problem solution-weather-observation-station-20.sql 40
Basic Join Asian Population Problem solution-asian-population.sql 10
Basic Join African Cities Problem solution-african-cities.sql 10
Basic Join Average Population of Each Continent Problem solution-average-population-of-each-continent.sql 10
Basic Join The Report Problem solution-the-report.sql 20

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