add a counter to a SELECT query's results - sql-server-2008

Question

I'm trying to add a counter to a list of Select results. Keeping it simple, my query is this:
Select distinct '"'+cast((product_sku) as varchar(30))+'"' as product_sku,preco,'"tamanhoecor::' + Left(Main.preco,Len(Main.preco)-1) + '"' As "custom_price"
From(
Select distinct ST2.product_sku,
(Select cordesc + ' - ' + tamanho +':' + cast(price_dif as varchar) + ';'
From [mg_produtos_preco] ST1
Where ST1.product_sku = ST2.product_sku
ORDER BY ST1.product_sku
For XML PATH ('')) [Preco],
product_price, cordesc,tamanho
From [mg_produtos_preco] ST2) [Main]
Which gets me this:
product_sku preco custom_price
"340803 010" Preto - S:0;Preto - M:0;Preto - L:0;Preto - XL:0; "tamanhoecor::Preto - S:0;Preto - M:0;Preto - L:0;Preto - XL:0"
"340803 100" Branco - S:0;Branco - M:0;Branco - L:0; "tamanhoecor::Branco - S:0;Branco - M:0;Branco - L:0"
However, I need this:
product_sku preco custom_price
"340803 010" Preto - S:0:0;Preto - M:0:1;Preto - L:0:2;Preto - XL:0:3; "tamanhoecor::Preto - S:0:0;Preto - M:0:1;Preto - L:0:2;Preto - XL:0:3"
"340803 100" Branco - S:0:0;Branco - M:0:1;Branco - L:0:2; "tamanhoecor::Branco - S:0:0;Branco - M:0:1;Branco - L:0:2"
I've tried to use what I've found here:
http://msdn.microsoft.com/en-us/library/ms187330%28v=sql.105%29.aspx
I've tried a
DECLARE #pos nvarchar(30)
Select .... (#pos + = 1) ....
from .... (SELECT #pos=0) ....
but I get a "Incorrect syntax near 'DECLARE'. Expecting '(', SELECT, or WITH.", plus a "Incorrect syntax near ="
I tried this code, which worked:
GO
DECLARE #var1 nvarchar(30)
SELECT #var1 = 'Generic Name'
SELECT #var1 = (
SELECT AppUserName
FROM [AppUsers]
WHERE AppUserID = 1000)
SELECT #var1 AS 'Company Name' ;
I would appreciate any help.
Thanks.

Answer 1

what do you mean by counter? Do you want a incremental number per row? If yes, try this:
select row_number() over (order by your_column), *
from your_table