use PL/SQL table or temporary table
-----Original Message-----
Sent: Tuesday, August 20, 2002 1:58 PM
To: Multiple recipients of list ORACLE-L
Hi,
This problem/solution may be posted earlier, but would like to hear
a solution from you.
I have two table say TAB1 and TAB2. TAB2 is a detail of TAB1 table.
1. TAB1
Pk_key numnber(10)
AMT numnber(14,2)
... More colums
pk_key is Primary Key.
2. TAB2
Pk_key numnber(10)
PK_sl number(2)
AMT numnber(14,2)
... More colums
1. pk_key + pk_sl is Primary Key.
2. pk_key is foreign key to tab1
Now I would like to write a trigger in TAB2 for INSERT and UPDATE operation
which will update the AMT coloum of TAB1. The value to be updated is sum of
AMT coloumn of TAB2 for the PK_KEY value.
i.e. select sum(amt) into tot from TAB2 where PK_KEY= :NEW.PK_KEY;
Since TAB2 is currently being modified it can not be read.
so, how to solve it ?
TIA
Regards.
Naba
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Author: N J Neog
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Author: Atul Kumar Srivastav
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