Question

My table looks something like:

ID | Type
01 | a
02 | c
03 | b
04 | a
05 | b
06 | a

I want to output the ID of the last added entries grouped by Type. ID is an auto-increment field so the last added entry is obviously the highest number.

SELECT * FROM `table` GROUP BY `Type` ORDER BY `ID` DESC, `Type` ASC

This groups the rows by Type then sorts by ID so I get IDs 1,2,3 whereas I want to sort first THEN group to get the result: 6,5,2

Answer 1

This might be what you’re looking for …

SELECT   MAX(`ID`), `Type`
FROM     `table`
GROUP BY `Type`
ORDER BY `Type` ASC

read as choose the maximum value of ID for each group of Type.