SQL remains the foundation for turning raw records into reports and business insights across industriesCore queries like ...

Built-in functions, UDFs, materialized results, and integrations with ML and AI models make streaming SQL a compelling choice ...

Learn about the filters you’ll use most often and how they work.

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Aggregate functions help turn large datasets into simple summaries used across many fields. GROUP BY and HAVING allow structured grouping and filtering of data for clearer reports. Functions like ...

This page contains solutions for all HackerRank SQL challenges which were passed successfully. There can be multiple ways of approaching solution to any problem. Please find the provided solutions for ...