Hello,

Apart from all the technical issues, you should also consider legal requirements. Student data has privacy protections based on federal laws commonly referred to as "FERPA" (Google it).

Commingling data about students from different customers might not be palatable to your customers. Segregating each customer's data in a separate database, even on the same server, might be more acceptable from a student privacy standpoint.

I am not a lawyer. Please consult a real lawyer for help with this issue.

Good luck