HackerRankis a popular interview preparation platform that offers programming questions and interview prep resources for developers while offering a place to hire tech talent for companies at the same time. However, HackerRank's resources could use a lot more depth, leaving developers mostly in the d...
Practice SQL Scripts From Interview Prep Websites These are scripts that answer questions from leetcode, DataLemur, hackerank and sqlzoo. Links to questions and my answers are below! LeetCode QuestionAnswer Employees earn more than their managers Solution Second highest salaries Solution Customers who...