No Database?

Hi there,
A few years ago I designed a website (using WordPress and Genesis) for a company in Shanghai. I built it on my Mac using Mamp Pro and I deployed it to the remote server in China using an FTP client (Transmit) and WP Migrate DB Pro.

Fast forward to today. The client has contacted me and told me that due to non-payment, his host has taken down his site and deleted all the files. However, he now has another host so he asked me to send him all the site files.

Now I’ve sent him the main site folder containing all the WP files and assets, but his host is asking for the SQL database. Can someone please tell me how to find this so they can redeploy the site?

Thank you in advance.