Insights from the Thapa Technical episode “PostgreSQL GROUP BY & HAVING Clause Explained with Practical Questions”, published June 18, 2026.
The instructor clarifies the functional divide between 'Group By' and 'Having' in PostgreSQL. He explains that 'Group By' is used to organize data into aggregate sets, while 'Having' acts as a secondary filter specifically for those aggregated results. Adhering to the logical query execution sequence—Select, From, Where, Group By, Having—is critical to avoiding syntax errors.
Topics: SQL, PostgreSQL, Database Management, Coding Tutorial, Data Analysis
