Get the last row

Hello,

Let's say I have the following rows

MyAutoinc     GroupId    Amount
1                     A             2000
2                     A            3000
3                     A            2000
4                     A            5000
5                    A            2000
6                    B            2000
7                    B            8000
8                    C            4000
9                   C            9000
10                    C            4000
11                    C            2000

I want to get the last row per every group so the result should be:


5                    A            2000
7                    B            8000
11                    C            2000

Thank you
starhuAsked:
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jmgst116Commented:
this should do what you want

select *  from table  where MyAutoinc  in( select max(MyAutoinc ) from table group by GroupId )

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Kevin CrossChief Technology OfficerCommented:
starhu, I was passing through the zone and noticed this was still open. The above comment should solve this for you. However, for performance reasons, you may want to go with JOIN.

SELECT t.MyAutoinc, t.GroupId, t.Amount
FROM your_table t
JOIN (
   SELECT GroupId, MAX(MyAutoinc) AS MAX_MyAutoinc
   FROM your_table
   GROUP BY GroupId
) m ON m.GroupId = t.GroupId AND m.MAX_MyAutoinc = t.MyAutoinc
;

Anyway, since this is still open, I just wanted to support the above http:#36958894 should work.

Kevin
0
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