Detect the fields changed in form

Hi all

I want to build a 'history' function in my Apex application.

My idea is to save all the changes to an existing record in a new table, but I have some difficulty to find the best way to do it.

I thought of it this way: once the user change the record and submit the form, ONLY changed fields will be saved in the new table of history. The fields which have no change will be ignored.

My problem is: how to identify modified fields? Maybe create a function that will compare all the fields, one by one, with the existing and detect changed him, but doesn't look like a very effective way.

Does anyone have a better solution? Someone has already done something like this?

Thank you!

I know that the easiest would be to use a database trigger.
See for example the old post from Tom Kyte
[http://asktom.oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:59412348055]
Kofi

Tags: Database

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