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tp3265417p3265417
2011 Feb 07
2
Using Aggregate for Date
Hi,
I am trying to find the min of day for each student in each year.
Here is the dataset:
date studentid year
1/1/05 6:07 AM 236 20082009
3/27/09 9:45 AM 236 20082009
4/29/09 8:44 AM 236 20082009
3/27/09 11:36 AM 310 20082009
4/1/09 10:43 AM 310 20082009
10/15/09 8:54 AM 310