Merge two rows into one - sql-server-2008

Question

When i run the below written procedure, the returned result set which i get is like
But Actually according to the scenario, what i want is that I want a single record against the #ContractId parameter. So, I want to merge the rows which my result set returns.
PS: This image shows only few columns, there also exists some other columns which have different values.
This is My Procedure:
ALTER PROCEDURE [dbo].[sp_Tbl_Contract_SearchOne]
-- Add the parameters for the stored procedure here
#ContractID int
AS
BEGIN
select
tbl_Contract.ContractID,
KeyWinCountNumber,
ItemName,
BrandName,
CountName,
SellerName,
BuyerName,
ContractNumber,
ContractDate,
CountryFromName,
CountryToName,
TotalQty,
Vans,
UnitPrice,
Amount
from tbl_Contract
inner join tbl_CountDetail
on
tbl_CountDetail.ContractID = Tbl_Contract.ContractID
inner join tbl_Count tcount
on
tcount.CountID = tbl_CountDetail.CountID
INNER JOIN Tbl_Item
on Tbl_Contract.ItemID = Tbl_Item.ItemID
INNER JOIN Tbl_Brand
on Tbl_Contract.BrandID = Tbl_Brand.BrandID
INNER JOIN Tbl_Seller
on Tbl_Contract.SellerID = Tbl_Seller.SellerID
INNER JOIN Tbl_Buyer
on Tbl_Contract.BuyerID = Tbl_Buyer.BuyerID
INNER JOIN Tbl_CountryFrom
ON Tbl_Contract.CountryFromID=Tbl_CountryFrom.CountryFromID
INNER JOIN Tbl_CountryTo
ON Tbl_Contract.CountryToID = Tbl_CountryTo.CountryToID
inner join tbl_CostUnit
on Tbl_Contract.CostUnitID = tbl_CostUnit.CostUnitID
where Tbl_Contract.ContractID = 1
and Tbl_Contract.IsDeleted = 0 and tbl_CountDetail.IsDeleted = 0
END

Answer 1

It depends what you want to do with the CountName field (the only value that differs between the two) but in theory you could just put it through an aggregation using GROUP BY (If you excluded CountName) or if you wanted to include CountName then maybe PIVOT would do the job.

Answer 2

This falls under aggregation, quite often aggregation means doing an operation (sum, average, standard deviation) on th rows you want to compress into a single row. For example, if your data consisted off number of cookie sales per person per day:
day person sales
======================
1 Bob 5
1 Jane 8
2 Bob 2
2 Jane 10
And you wanted to see over all days what the total sales per person is, you would select person and the sum(sales) grouping by the person
select
person
sum(sales)
from salesData
group by person
Your case is somewhat less standard, in that you are trying to aggregate a filed which is character-based, or alphanumeric. This is fine, sort of, in that there are some aggregations which will work with a character-field. MIN will still work, as wil MAX - returning the first and last field respectively.
ie, doing a min over the set a,b,c will return a as it is first (Minimum ordered by string ordering rules). You seem to have some other numeric fields (Amount,UnitPrice,TotalQty) - these you can pick the correct aggregation for - I suspect SUM is most likely
So you could do this:
select
tbl_Contract.ContractID,
KeyWinCountNumber,
ItemName,
BrandName,
MIN(CountName) as FirstCountName,
SellerName,
BuyerName,
ContractNumber,
ContractDate,
CountryFromName,
CountryToName,
SUM(TotalQty) AS SumTotalQuantity,
Vans,
SUM(UnitPrice) as TotalUnitPrice,
SUM(Amount) AS TotalAmount
from tbl_Contract
[...snip...]
group by tbl_Contract.ContractID,
KeyWinCountNumber,
ItemName,
BrandName,
SellerName,
BuyerName,
ContractNumber,
ContractDate,
CountryFromName,
CountryToName,
Vans
This will now return 1 row, where FirstCountName has the value Count1 502 as this is the first (min) value from the aggregated fields.