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SQL Group By clause.. change the new column name

There are three columns in a table namely, Student name , Subject name & Marks . There are three subjects Physics , Chemistry & Maths .. there are marks mentioned in front of them.

Then In this case If we want to run Group By Statement with Function AVG . then in the result a new column is created by default.

If I want to change the Column name of the new One.. How can I change?

You just have to use alias. so use below

select avg(marks) as YourColumnName from ...

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