このレッスンは、現在英語のみです。
Many rows, one answer
How many users? What is the best score? An aggregate function reads many rows and returns a single value. Five of them answer most everyday questions.
このレッスンは、現在英語のみです。
How many users? What is the best score? An aggregate function reads many rows and returns a single value. Five of them answer most everyday questions.