How to update a column value by comparing old value by using DML Handler...

Hi Can anyone post the DML Handler code for updating a column value by comparing the old value.
Thanks,
Ray

Hi,
Here is an example of a DML handler.
BEGIN
DBMS_APPLY_ADM.SET_DML_HANDLER(
object_name => 'scott.emp',
object_type => 'TABLE',
operation_name => 'UPDATE',
error_handler => false,
user_procedure => 'strmadmin.update_column',
apply_database_link => NULL,
apply_name => 'MY_APPLY');
END;
This DML handler which will send any LCR matching the specified conditions to the strmadmin.update_column for customised processing.
You can write the strmadmin.update_column procedure so that it extracts the old values from the LCR. You can then use the old values from the LCR to identify the row in the table. Once you identify the row, you can update it as you want.
I haven't really tried to do any customised processing using DML handlers, but this should work.
Hope this is of help.
Sujoy

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http://www.psoug.org/reference/nested_tab.html
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2 /
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2
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oops my mistake.....typo mistake...it should have been as follows --
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