Someone
public text v1 · immutableFranchiseLeadLetterID FranchiseLeadID LetterID Created
--------------------- --------------- ----------- -----------------------
1 24 6 2007-05-05 16:58:00
2 25 6 2007-05-05 16:58:00
3 25 5 2007-05-06 14:18:00
4 25 4 2007-05-06 14:18:00
How do I get the group-wise maximum LetterID (based off 'Created') for the FranchiseLeadID ?