How to group by DESC order

Question

I have the following table called questions:

ID | asker 
1  | Bob
2  | Bob
3  | Marley

I want to select each asker only once and if there are

Answer 1

The records need to be grouped using GROUP BY and MAX() to get the maximum ID for every asker.

SELECT  asker, MAX(ID) ID
FROM    TableName
GROUP   BY asker

• SQLFiddle Demo

OUTPUT

╔════════╦════╗
║ ASKER  ║ ID ║
╠════════╬════╣
║ Bob    ║  2 ║
║ Marley ║  3 ║
╚════════╩════╝