How to select the first/least/max row per group in SQL
A nice explanation about the subject. Easy to understand.
http://www.xaprb.com/blog/2006/12/07/how-to-select-the-firstleastmax-row-per-group-in-sql/
How to select the first/least/max row per group in SQL
A nice explanation about the subject. Easy to understand.
http://www.xaprb.com/blog/2006/12/07/how-to-select-the-firstleastmax-row-per-group-in-sql/
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