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Sql server 2008 - How to transpose data into a new table

Posted on 2013-05-14
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Last Modified: 2013-05-15
Hi..
I have an odd table that looks like this

CUST_ID       ORDER1   ORDER2   ORDER3   ORDERDATE1    ORDERDATE2  ORDERDATE3
1         Shoes        Pants        Socks         1/2/2013         1/3/2013         1/4/2013

How can I create an a query that will put it into a new table that looks like this

CUST_ID     ORDER           ORDERDATE
1       Shores               1/2/2013
1       Pants                 1/3/2013
1      Socks                  1/4/2013



thanks
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Question by:JElster
2 Comments
 
LVL 40

Assisted Solution

by:Sharath
Sharath earned 250 total points
ID: 39166631
can you try this.
;with cte1 as (select cust_id,OrdersCol,Orders,row_number() over (partition by cust_id order by OrdersCol) rn 
                 from test 
			  unpivot (Orders for OrdersCol in (Order1,Order2,Order3)) unpvt),
      cte2 as (select cust_id,OrderDateCol,OrderDate,row_number() over (partition by cust_id order by OrderDateCol) rn 
	            from test 
			  unpivot (OrderDate for OrderDateCol in (OrderDate1,OrderDate2,OrderDate3)) unpvt)
select c1.cust_id,c1.Orders,c2.OrderDate
  from cte1 c1
  join cte2 c2 on c1.cust_id = c2.cust_id and c1.rn = c2.rn  

Open in new window

see here: http://sqlfiddle.com/#!3/3f264/7
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LVL 48

Accepted Solution

by:
PortletPaul earned 250 total points
ID: 39166884
I think a simpler approach is available, using cross apply:
select
  cust_id
, orderid
, orderdate
from test
cross apply (
        values
                 (ORDER1,ORDERDATE1)
               , (ORDER2,ORDERDATE2)
               , (ORDER3,ORDERDATE3)
             ) as crossapplied (ORDERID, ORDERDATE)  

Open in new window

http://sqlfiddle.com/#!3/3f264/10

nb: you might want to avoid calling a field 'order' as that is a sql reserved word 'orderid' or something along those lines might be a better option.
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