Getting ready for a SQL interview can feel like a big task. There are so many things to know, and interviewers love to ask about them! This guide is here to help. We’ve gathered some of the most ...

Hello, I have a query where Postgres and DuckDB handle aggregations differently. Our understanding is that this is a case where the SQL standard is vague and wanted to ask what semantics you mean to ...

Sling TV has added a new low-cost option to its streaming lineup with the launch of Sling Select, a smaller television package that includes access to Fox News, FX and NFL Network at a price that ...

At the Web3 Summit in Berlin today, SubQuery made a major announcement, unveiling its newest innovation: decentralized AI inference hosting. In a live demonstration, SubQuery’s COO, James Bayly, ...

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 ...