For those new to data analysis, I have compiled a list of free sites where you can practice SQL, methods for setting up your own practice environment, and 10 practice problems to review the content of ...

This Applied AI edition looks at what organizations actually did with AI over the past two weeks, drawn from our Use-Case Library and from SEC ...

HackerRank’s AI interviewer has already conducted more than 500,000 interviews, with Snowflake, Snorkel, and Capgemini among its early testers.

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.

Late corrections can make historical replays use data that was not known at the time. Learn how business time and system time ...

The best at-home COVID-19 tests are FDA-authorized, easy to use, accurate, quick, and can also detect flu viruses. Lauren Paige Richeson is an Editor at Health, where she’s been writing, editing, and ...

The top free internet speed test apps are Meteor for app-specific performance insights, Speedtest by Ookla for all-around network testing, and FAST Speed Test for quick ad-free checks. Several factors ...

This project migrates a sample sales database from an on-premises SQL Server instance to Azure SQL Database using Azure Data Factory (ADF) and a Self-Hosted Integration Runtime (SHIR). It implements ...

Hard SQL interview questions test the advanced problem solving skills expected in many medium and senior level data analyst ...

An antinuclear antibody (ANA) test checks your blood for certain types of antibodies called autoantibodies. Autoantibodies commonly develop in people with autoimmune conditions, but they can show up ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...