The following challenges all revolve around simple SELECT statements that make use of SELECT, FROM, WHERE, and ORDER BY. The WHERE clauses will use and three basic boolean operators as well as some of ...

Regex and Parsing Detect Floating Point Number Problem Easy Solution Regex and Parsing Re.split() Problem Easy Solution Regex and Parsing Group(), Groups() & Groupdict() Problem Easy Solution Regex ...

Most HackerRank challenges require you to read input from stdin (standard input) and write output to stdout (standard output). One popular way to read input from stdin is by using the Scanner class ...

Here are the 4 questions asked in HackerRank SQL Basic Certification Exam, from these 2 will be available in one attempt. Student analysis SQL… ...

SELECT ei.employee_ID, ei.name FROM employee_information ei JOIN last_quarter_bonus b ON b.employee_ID = ei.employee_ID WHERE ei.division LIKE 'HR' AND b.bonus >= 5000; This is one question solution ...

Hi, guys, today I want to analyze the Array Manipulation problem from Hackerrank. We will take a look at a suboptimal solution, which is naturally easiest to figure out. Then we will discuss, analyze, ...