Item Required whose cost changed

Hi,

In my business, I need to develop script where I want only those items whose cost is changed, Is there any table available in Oracle where I get this?

Everytime when I run script, it will retrive only those items whose price changed.

I checked few costing tables but it could'nt fullfill my requiremrnt.

cst_item_costs cic

cst_item_cost_details cicd

Regards,