Database - add new customers from old database

:unsure:

A week ago I made a backup of my database.

This week, :frusty: cause of my carelessness I had to reinstall Zencart and created a new database because i could not find my original backup.

Since creating this new database, I've received 5 new customers and voila, i've found my backup.


How do I combine the two databases so my all customers will show up on just my original database list?

I'm not sure how to add tables, when i tried too, it gave me a duplication error.

any suggestions would be deeply appreciated.