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Get the products with the highest price

Posted on 2014-11-23
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Last Modified: 2014-11-24
Hi
Everyday we enter buyers that put prices out for products.  We enter the prices for each product they list.

What I am trying to do is create a query that will show which buyer has the highest price for each product entered daily.

For example the data looks like this:

BuyerCode              CodePD               Price               Date
AA                                   H1                    $280              24/11/14
GH                                  H1                    $295              24/11/14
GG                                  H1                    $285              24/11/14
SG                                   H1                    $275              24/11/14
AA                                   CO                   $300               24/11/14
GG                                  CO                    $305               24/11/14
and so on and so on........

What I would like it to be able to list the highest price details:
BuyerCode             CodePD                Price                 Date
GH                                H1                     $295                24/11/14
GG                                CO                     $305                24/11/14
etc etc
If a buyer has the same price then that should show in the results.

I hope I have explained it properly....I can clarify if need be.

Thanks in advanced.

Ajae
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Question by:ajaeclarke
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4 Comments
 
LVL 120

Expert Comment

by:Rey Obrero (Capricorn1)
ID: 40461373
try this query

select T.*
from TableX as T
inner join
(select max(t2.Price) as maxPrice, t2.CodePD, t2.[Date]
 from tableX as t2
 group by t2.CodePD, p2.[Date]) as t3
on  T.CodePD=t3.CodePD and t3.[Date]=t3.[Date] and T.Price=t3.maxPrice
0
 
LVL 24

Accepted Solution

by:
chaau earned 500 total points
ID: 40461378
you need to use the query similar to this:
Select
prices.BuyerCode, prices.CodePD, prices.Price, prices.Date
FROM prices INNER JOIN
(SELECT CodePD, Max(Price) AS MaxPrice, Date
 FROM prices GROUP BY CodePD, Date) AS m
ON prices.CodePD = m.CodePD AND prices.Date = m.Date
ORDER BY 3 DESC, 1, 2

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Please note, that with the query above, when several buyers have the same highest price for the day they will be listed
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LVL 1

Author Comment

by:ajaeclarke
ID: 40461446
Thanks for the replies.

Rey Obrero, I get a join expression not supported.

Chaau, with a bit of tweaking I got it working how I needed.

Thanks for you help!
0
 
LVL 120

Expert Comment

by:Rey Obrero (Capricorn1)
ID: 40461959
typo on the join,  t3.[Date]=t3.[Date]  should be T.[Date]=t3.[Date]


select T.*
from TableX as T
inner join
(select max(t2.Price) as maxPrice, t2.CodePD, t2.[Date]
 from tableX as t2
 group by t2.CodePD, p2.[Date]) as t3
on  T.CodePD=t3.CodePD and T.[Date]=t3.[Date] and T.Price=t3.maxPrice
0

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