I don't find the sql request

Posted by user301089 on Stack Overflow See other posts from Stack Overflow or by user301089
Published on 2010-04-15T14:22:29Z Indexed on 2010/04/15 14:53 UTC
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Filed under:

sql

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postgresql

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request

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distinct

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group-by

Hi everybody,

Here it's my problem I've a list of the following measure :

src1   dst2   24th december 2009
src1   dst3   22th december 2009
src1   dst2   18th december 2009

I would like to have just the latest measures with a sql request -> 2 first lines in my case because the pairs(src and dst) aren't the same.

I try to use DISTINCT but I have just the 2 first columns and I will all columns. I try too GROUP BY but I hadn't success.

Anyone can help me ?

Thx

Narglix

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