Question

I have a query with a result like this

No    date           No.PO     product    type       div         price
1.      01-10-2012   |    AAA1  |     X1   |    1   |     SBS   |      100
2.      09-10-2012   |    ABA1  |     X1   |    2   |     SBS   |      150
3.      11-10-2012   |    ACC1  |     X1   |    1   |     SBS   |      110
4.      15-10-2012   |    ACD1  |     X1   |    1   |     DBS   |      115
5.      20-10-2012   |    ADA1  |     X1   |    1   |     SBS   |      112
6.      23-10-2012   |    AFA1  |     X1   |    2   |     SBS   |      160
7.      27-10-2012   |    AHA1  |     X1   |    1   |     SBS   |      120

and a few thousand record . . .

and the result should be show like this

No        date           No.PO     product    type        div         price
1.      27-10-2012   |    AHA1  |     X1   |    1   |     SBS   |       120
2.      23-10-2012   |    AFA1  |     X1   |    2   |     SBS   |       160
3.      15-10-2012   |    ACD1  |     X1   |    1   |     DBS   |       115

Here is the rules

1. Distinct on product type and div
2. Only the last transaction that i wanna show (it means the biggest date among the duplicate product, type and div data)
3. All of the field (date, No.PO, product, type, div and price) must be showed

Hopefully my description is clear now . .

Anyone can help me with the right query?

Answer 1

Please try the query and check the result, mere guess.

SELECT * FROM(
    SELECT
        ROW_NUMBER() OVER (Partition by [Type], [Div] ORDER BY [Date] DESC) RowNum,
        [Date], 
        [No.PO], 
        [Product], 
        [Type], 
        [Div], 
        [Price] 
    FROM TABLE_Name
)x WHERE RowNum=1 
ORDER BY [Date] DESC