How to find an average grade for each student with SQL
Question
I have a list of grades that students received. Each student appears multiple times in the table. How do I produce a list of all the students with their average grade?
Ps I've tried looking at previously asked questions to see if I can find something relevant, but with no luck.
2 answers
solution1
2 ACCPTED 2010-08-30 20:32:19
查找AVG函数和GROUP BY子句。
solution2
0 2010-08-30 20:32:52
Since it's homework . . .
You are basically trying to aggregate data in SQL. Try googling along those lines.
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