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Bharath Bhat
Active User
Joined: 20 Mar 2008
Posts: 283
Location: chennai
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Hi,
I want to fetch unmatched rows from two tables. I have a common key which should not be equal.
In other words, I want all the rows other than those which I would get from an inner join on the common key. |
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Bharath Bhat
Active User
Joined: 20 Mar 2008
Posts: 283
Location: chennai
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Ex.
cost
prod-num cost seq-id
1 3 2
2 2 5
3 2 7
4 3 3
PRICE
prod-num price seq-id
1 1 2
2 2 4
3 3 6
4 4 3
| Code: |
SELECT * FROM COST A,PRICE B
WHERE A.PROD-NUM=B.PROD-NUM
AND A.SEQ-ID =B.SEQ-ID |
OUTPUT
prod-num cost seq-id prod-num price seq-id
1 3 2 1 1 2
4 3 3 4 4 3
my requirement is,
OUTPUT
prod-num cost seq-id prod-num price seq-id
--------------------------- 2 2 4
2 2 5 ---------------------------
--------------------------- 3 3 6
3 2 7 -------------------------- |
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Bharath Bhat
Active User
Joined: 20 Mar 2008
Posts: 283
Location: chennai
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I think my requirement will be satisfied by exceptional join or by coding a NOT EXISTS clause on second table.
Can someone put more light on these? |
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