Diese Lektion gibt es vorerst nur auf Englisch.
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.
Diese Lektion gibt es vorerst nur auf Englisch.
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.