You must be created your own database by yourself and you should be followed the necessary steps.

1. Database Collection Flowchart:
Different Source of Data
Collection
Collecting the Data from Our
Own Database Server
Collecting from Differents
Source of Data Like,
Web/Internet, Soical
Network, Personal Network,
Etc.
Evaluate the Data Potentiality
Store/Input the Data in
CRM,Google Sheet, Excel
Sheet