Sharing a single database with several eShop site

[Thierryh]

Hello

I am creating 3 eShop for the same customer who owns 3 different shops (his 3 shops sell different kind of products). I 'd like to share the shame Customers db table (that will allow the customers to not have to create account on the 3 eShop if they want to buy products on the 3 eShops, and that will allow to track easily customer features). It is possible ?

In the same kind of issue, is it possible to have the same database for different PrestaShop application ?

Regards
Thierry