I don’t know where to find an actual detailed list of the schema changes from 10.1 to 10.2 but you could email documentation@epicor.com and ask them if they have anything.
I found this in the Epicor ERP Feature Summary for 10.2.100 on EpicWeb but it’s a very high-level overview for Epicor10:
This is an older post requesting an Epicor10 DB Schema which gives you some tools that you can use to create a schema and a link to the Epicor10 ERD.