Oracle DUL Help in Reconstructing R12 11g database catalog due to corruption in the database

I have a customer who’s database has been corrupted and need support from experts.Pls find below the bullet points below.

Can we use golden gate in the below case.Pls advise

At
this time, Support is unable to offer a solution, the only
alternative is to extract the data from the database and migrate it into a fresh install 12.1.3 which is similar to an implementation project

Answer:

The best utility to use with a badly damaged database is DUL.
DUL can get data out of pretty much anything as far as I recall.

http://www.parnassusdata.com/en/node/270