Question

Possible Duplicate:
Select Records multiple times from table

I want to have my query return (multiple) rows for the value of TABLE_B.QTY.

TABLE A
SALESNR  ITEMNR LINENR
100      B2001  1
101      B2002  2
102      A1021  3 

TABLE B 
LINENR   COLOR QTY
1        WHITE  3  
2        BLACK  1
3        BROWN  8

For instance, with the following query:

SELECT    TABLE_A.SALESNR, TABLE_A.ITEMNR, TABLE_B.COLOR, TABLE_B.QTY
FROM       TABLE_A  INNER JOIN TABLE_B ON TABLE_B.LINENR = TABLE_A.LINENR

I get:

100    B2001   White   3

What I need is:

100    B2001   White   3
100    B2001   White   3
100    B2001   White   3

Is there a way to do this?
Can’t think of the right keywords to Google this…

Thnx,

Mike

Answer 1

This will work as long as QTY is less than 2047

SELECT TABLE_A.SALESNR, TABLE_A.ITEMNR, TABLE_B.COLOR, TABLE_B.QTY 
FROM TABLE_A
INNER JOIN TABLE_B ON TABLE_B.LINENR = TABLE_A.LINENR 
INNER JOIN master..spt_values ON type = 'P' AND number < TABLE_B.QTY

use this if QTY exceeds 2047:

;WITH a AS
(
SELECT TABLE_A.SALESNR, TABLE_A.ITEMNR, TABLE_B.COLOR, TABLE_B.QTY, 1 row
FROM TABLE_A
INNER JOIN TABLE_B ON TABLE_B.LINENR = TABLE_A.LINENR 
WHERE QTY > 0
union all
SELECT SALESNR, ITEMNR, COLOR, QTY, row+1 
FROM a
WHERE QTY > row 
)
SELECT SALESNR, ITEMNR, COLOR, QTY from a
OPTION (MAXRECURSION 0)