If you don’t know what procrastination is you could start your own blog. Start a post with something like “I worked with … and decided to write three posts about it”. Procrastination is what you experience before the last post is ready; seemingly simple things take forever to get out the door.

After you have validated database as shown in previous post any corrupt database blocks will be reported in the view V$DATABASE_BLOCK_CORRUPTION. Now you want to find out the tables that used to have data in these blocks; those data have typically been lost if you have no backup of them or do not posses special tools like DUDE.