Combining result rows - sql

Question

I'm trying to get the result below to be displayed group by Article.
Would this be possible?
So that in the end I will only have 2 lines.
The data from TYPE I & W will be combined.
The image to my query as below
image http://tikistudio.sg/F002.jpg
The query as below
SELECT INTSALEID as RECEIPT,
STRSALETYPE as TYPE,
STRORDERCODE as ARTICLE,
max(case when strsaletype='I' then DBLQTYSOLD else null end) as [QTY SOLD],
max(case when strsaletype='I' then CURSELLPRICE1 else null end) as [UNIT PRICE],
max(case when strsaletype='W' then CUROFFERDISCOUNT else null end) as [DISCOUNT],
max(case when strsaletype='I' then CURFOREIGNAMT else null end) as [GROSS AMOUNT]
FROM DAILYSALES
WHERE STRTRADECODE='MM01'
and DTMTRADEDATE='01-01-2015' and INTSALEID='31086'
and STRSALETYPE in ('I','W')
GROUP BY STRORDERCODE,STRSALETYPE,INTSALEID,DBLQTYSOLD,CURSELLPRICE1,
CURFOREIGNAMT,CURDISCOUNT,CUROFFERDISCOUNT

Answer 1

You have to remove some columns in Group By
SELECT
INTSALEID as RECEIPT,
STRORDERCODE as ARTICLE,
MAX(CASE WHEN strsaletype='I' THEN DBLQTYSOLD ELSE NULL END) as [QTY SOLD],
MAX(CASE WHEN strsaletype='I' THEN CURSELLPRICE1 ELSE NULL END) as [UNIT PRICE],
MAX(CASE WHEN strsaletype='W' THEN CUROFFERDISCOUNT ELSE NULL END) as [DISCOUNT],
MAX(CASE WHEN strsaletype='I' THEN CURFOREIGNAMT ELSE NULL END) as [GROSS AMOUNT]
FROM DAILYSALES
WHERE
STRTRADECODE='MM01'
and DTMTRADEDATE='01-01-2015' and INTSALEID='31086'
and STRSALETYPE in ('I','W')
GROUP BY STRORDERCODE,INTSALEID

Answer 2

If you aggregate your data one more time grouping by Receipt, and Article, taking the max value for QTY Sold, Unit Price, Gross Amount and Min Value for Discount.
Select RECEIPT, ARTICLE, MAX([QTY SOLD]) as [QTY SOLD], MAX([UNIT PRICE]) as [UNIT PRICE], MIN([DISCOUNT]) as [DISCOUNT], MAX([GROSS AMOUNT]) as [GROSS AMOUNT]
From
(select INTSALEID as RECEIPT,
STRSALETYPE as TYPE,
STRORDERCODE as ARTICLE,
max(case when strsaletype='I' then DBLQTYSOLD else null end) as [QTY SOLD],
max(case when strsaletype='I' then CURSELLPRICE1 else null end) as [UNIT PRICE],
max(case when strsaletype='W' then CUROFFERDISCOUNT else null end) as [DISCOUNT],
max(case when strsaletype='I' then CURFOREIGNAMT else null end) as [GROSS AMOUNT]
from DAILYSALES
where STRTRADECODE='MM01'
and DTMTRADEDATE='01-01-2015' and INTSALEID='31086'
and STRSALETYPE in ('I','W')
group by STRORDERCODE,STRSALETYPE,INTSALEID,DBLQTYSOLD,CURSELLPRICE1,
CURFOREIGNAMT,CURDISCOUNT,CUROFFERDISCOUNT) x
Group by RECEIPT, ARTICLE