I'm new to zoho creator and my manager wants me to create  a database system for our business, which our staff can all access via the cloud and edit whilst still being secure. What he also wants is a file for each of our clients which logs all contact with them, their basic information and attached files that have been sent to them. 

Can this be done with zoho creator? If so how? 

If it cannot be done can anyone recommend some other software that I could use which would suit my needs? 

Thank you in advance!