Exploring SQL Quries: A HackerRank Dataset

This dataset was crawled from the HackerRank website and contains data related to SQL programming challenges on the HackerRank platform. Hackerrank supports using different DBMSs ( MySQL, MS SQL Server, and Oracle) to submit queries. The dataset includes information about the challenge problems, and submission statistics, and contains 22 programming problems and millions of submission records. On HackerRank, each problem will provide the table structure to be queried. The tables related to this dataset are the "city" table and the "station" table. Detailed information about these two table structures can be found on the HackerRank website. This dataset can be used to analyze the difficulty and popularity of programming challenges, as well as the characteristics of SQL queries. As the dataset is sourced from the HackerRank website, it can be assumed that the samples are randomly selected from programming enthusiasts around the world, making it representative and reliable.