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Avoiding loop to get a resultset

Posted on 2007-03-22
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Last Modified: 2013-11-30
Let me explain the scenario (SQL 2000 DTS):
I've a order table and order_detail table.
Order_detail table refers Order table for order_id. Since one order can have multiple items within it we've the order_detail table. So Order->order_detail is a one->many relationship.
Now I want to export the data into a flat file. the format is something like this:

order1_id, order number, date
Order_detail_id1,item_name1
Order_detail_id2, item_name2
order2_id, order number, date
order_detail_id3,item_name3
order_detail_id4, item_name4

So I need to write one line from the order table and then follows the corresponding order_detail table records. Again need to write the order table record and so on. Is there way to do this other looping? I knw we can use a while loop or cursor, I want to know if therz a better way of writing this in t-SQL only avoiding loop.

regards
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Question by:rsrsm
3 Comments
 
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Accepted Solution

by:
Ved Prakash Agrawal earned 250 total points
ID: 18770451
can you used vbscript in you dts package and in which you write you loops.
i don't think so without looping we can achive the same things.
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Assisted Solution

by:Lowfatspread
Lowfatspread earned 250 total points
ID: 18770463
you could write a select statement to do it

but a loop is probably best....

(you may also wish to experiment with an xml output?)

e.g.

Select case Linetype when  0 then convert(char(10),o.orderno)+'...'
                   else convert(....
                   end
         +...

from Order as O
Inner join OrderLine as OL
 on o.orderno=ol.orderno
cross join (select 0 as linetype union select 1) as L
Where (ol.sequence = 1 and l.linetype=0)
   or (l.linetype=1)
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Author Comment

by:rsrsm
ID: 18770503
Thank you both since both the answers were quick and almost similar I've divided the points. Please let me know if there are any concerns.
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