Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...

SQL skills are essential for high-demand roles like data analyst, business analyst, data scientist, software developer, and database administrator. Mastering SQL enables professionals to efficiently ...

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications.

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 ...

Here are the 4 questions asked in HackerRank SQL Basic Certification Exam, from these 2 will be available in one attempt. SELECT ei.employee_ID, ei.name FROM employee_information ei JOIN ...

Forbes contributors publish independent expert analyses and insights. I write about tech companies, careers, and in-demand skills. Dec 08, 2016, 12:47pm EST Dec 08, 2016, 12:48pm EST This article is ...