What is the average marks for the below given SQL query?
SELECT AVG(Marks) FROM Student_Marks
|
Student_Marks |
|
|
ID |
Marks |
|
1 |
19 |
|
2 |
17 |
|
3 |
18 |
|
4 |
null |
|
5 |
18 |
|
6 |
null |
|
7 |
null |
1
17
2
18
3
19
4
20
5
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