auditing 50 columns using oracle trigger

Question

I need to create a trigger in oracle 11g for auditing a table .

I have a table with 50 columns that need to be audited

Answer 1

the way i like to do it:

1. create an audit table that is parallel to your existing original table.
2. add a timestamp and user columns to this audit table.
3. whenever the original table is inserted or updated, then just insert into the audit table.
4. the audi table should have a trigger to set the timestamp and user values - all other values come in as the new values.

then you can query at any time who did what, and when.