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Re: query by first occurrence in group
Posted by: ROB MARTINI
Date: May 22, 2019 01:49PM

My target is to extract record which have maximum value for "number" field for every sector, but where if It exists multiple records having the maximum value in every sector group I├Čll have to choose one, don't worry what record is it.
I'll give another example, I run query which gives records with maximum value for every sector group:

sector, matric

orto 001
orto 002
orto 003
orto 004
neu 005
neu 006
neu 006

In "orto" sector there n.4 matric with same same maximum value.
In "neu" there are n.3 matric with same same maximum value.
...

I'd like to extract one (any) of n.4 "orto" records, one of n.3 "neu" records
Don't worry what the matric is in sector group, It's necessary for example the first one.

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Re: query by first occurrence in group
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May 22, 2019 01:49PM


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