Rodrigo De León wrote:
On 9/7/07, Chansup Byun <Chansup.Byun@xxxxxxx> wrote:
Can someone show me an example SQL statement?
I suppose you could add a constant, non-overlapping number to add to
the duplicate IDs, say 1000, and then this:
SELECT COALESCE(T1.U_USER, T2.U_USER) AS U_USER
, COALESCE(CASE
WHEN EXISTS(SELECT 1
FROM TABLEB
WHERE U_ID = T1.U_ID
AND U_USER <> T1.U_USER)
THEN T1.U_ID + 1000
ELSE T1.U_ID
END
, T2.U_ID
) AS U_ID
FROM TABLEA T1 FULL JOIN TABLEB T2 ON T1.U_USER = T2.U_USER
will generate a new list of U_USERs and U_IDs.
Good luck.
This is cool!
What I wanted is shown below.
One more question: Is there a way to make the T2.U_ID + 1000 number to be incremental from a given number instead of adding 1000?
SELECT COALESCE(T1.U_USER, T2.U_USER) AS U_USER
, COALESCE(CASE
WHEN EXISTS(SELECT 1
FROM TABLEB
WHERE U_ID = T1.U_ID
AND U_USER <> T1.U_USER)
THEN T1.U_ID
ELSE T1.U_ID
END
, T2.U_ID + 1000
) AS U_ID
FROM TABLEA T1 FULL JOIN TABLEB T2 ON T1.U_USER = T2.U_USER
thanks,
- Chansup
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