So, you’ve got a HackerRank test coming up, huh? It’s pretty common these days, with lots of companies using it to see if you can code. It can feel a bit daunting, but honestly, it’s just another ...

The journey to get a first job is quite challenging. You go through different interview rounds for the first time. You may worry about how to answer questions without experience, how to introduce ...

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 ...

select t1.flight_id,t2.flight_id, concat(t1.flight_id,',',t2.flight_id),t3.city_name, ...

LeetCode focuses mainly on algorithms, while data science requires skills like SQL, statistics, and working with real data. Different platforms offer various ways to prepare, from building portfolios ...

we have a swipe table which keeps track of the employee login and logout timings. 1. Find out the time employee person spent in office on a particular day (office hours = last logout time - first ...

SQL, the Structured Query Language, is a cornerstone skill for anyone working with data. To master this powerful language, consistent practice is crucial. We present a curated list of 12 top-notch ...

SQL, or Structured Query Language, is like the language of databases. It’s a way for computers to understand and manage data. Whether one is aiming to be a data analyst, scientist, or engineer, SQL is ...