KwickClips Databases and SQL · 42 sec · free
Can one SELECT use four aggregates?
Short answer. Yes.
Which gives the highest marks?
MAX.
Remember
| SUM: total |
| AVG: average |
| MAX, MIN: largest, smallest |
Can one query give total, average, highest and lowest? Yes. Sum is the total. Avg is the average. Max is the highest. Min is the lowest. Sum totals. Avg averages. Max and min find the ends.
This clip is from the full lesson: Aggregate Functions: COUNT, SUM, AVG, MAX and MIN — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 12 Computer Science (083), CBSE Class 12 Informatics Practices (065)
More KwickClips from this lesson
What does an aggregate function return?39 sec
Which COUNT counts rows?38 sec
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