I have researched that creating my own odoo saas is possible, but I’m wondering if it can be achieved to act like a cloud-based POS like square POS, clover etc. 

for this, I’m thinking to use one database only since all features for all users will probably the same. No technical codes or input for the customers will be allowed. 

Basically, each customer will have the same features like POS, Inventory management, Employee Management, etc. Then they will be separated by company so they can only see their data’s company. 

Is this achievable? And is it possible with just one database?

I’m referring to Odoo community edition by the way

thank you