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Given:

SELECT * FROM MASTER
....+....1....
MASTERKEY
1
2
3
******** End of data

SELECT * FROM DETAIL
MASTERKEY DETAILKEY
1 1
1 2
3 1
3 2
3 3
4 1
**** End of data ******

WITH T1 AS (SELECT MASTERKEY, MAX(DETAILKEY) AS MAXDETAILKEY
FROM QTEMP/DETAIL
GROUP BY MASTERKEY
ORDER BY MASTERKEY)
SELECT MASTER.MASTERKEY, IFNULL(MAXDETAILKEY,0)
FROM QTEMP/MASTER LEFT OUTER JOIN T1
ON MASTER.MASTERKEY = T1.MASTERKEY
UNION
(SELECT T1.MASTERKEY, MAXDETAILKEY
FROM T1 EXCEPTION JOIN QTEMP/MASTER
ON T1.MASTERKEY = MASTER.MASTERKEY)

+....1....+....2....+....3
MASTERKEY IFNULL
1 2
2 0
3 3
4 1
**** End of data ********



Rob Berendt

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