SQL query to get all values of first distinct (given) column values

Question

I have the following sample data in my table:

ID  GRADE
1   54 
1   53  
1   52
2   78  
2   75 
2   74 
3   43 
3   42
3   41

This is gotten from the query: "SELECT ID,GRADE FROM TABLE ORDER BY GRADE DESC;" The ID is not a primary key.

I want to obtain the data like this:

ID  GRADE
1   54
2   78
3   43

That is, I want to get the value of all records that are the first distinct ones in terms of the ID.

Any suggestions?

Answer 1

I think you need this simple group by :

select ID, max(GRADE) 
from TABLE 
group by ID
order by ID