Boost your SQL interview readiness with these 35 carefully selected SQL Interview Questions and Answers. Includes real-world ...

“The best introduction to the lifelong pleasure and rewards of looking at pictures since Gombrich. An instant classic.” Stephen Fry If you (like most viewers) of Jan van Eyck’s “Arnolfini Portrait” ...

Artificial intelligence has become an invisible assistant, quietly shaping how we search, scroll, shop, and work. It drafts our emails, curates our feeds, and increasingly guides decisions in ...

Pull requests help you collaborate on code with other people. As pull requests are created, they’ll appear here in a searchable and filterable list. To get started, you should create a pull request.

The May 5 article, “5 Research-Backed Ways to Help Students Catch up in Math,” reminded me of my early days as a teacher and school leader. I regularly worked one-on-one with middle and high school ...

In this post, we will go step by step into several aspects of Change Data Capture, a feature that is available on the Azure SQL Managed Instance and Microsoft SQL Server. The focus will be on the ...

“Do you understand?” It’s one of the most common questions asked in schools, tutoring sessions, and even at the kitchen table. It sounds helpful, teacher-like, and open-ended. But it’s also incredibly ...

1️) Scalar Subquery in SELECT: SELECT e.emp_id, e.emp_name, e.salary, (SELECT ROUND(AVG(salary), 2) FROM employees WHERE dept_id = e.dept_id) AS dept_avg_salary FROM employees e; 2️) Correlated ...