CRM-database-platform-build

We want a stable database and simple CRM Must be expandable so we can add extra fields. Have good sorting functions so we can search by fields. Fields for Phone number, 4 name fields, street and number, town, province, 4 date fields and 3 pre defined list fields. There should also be 2 comment fields that are non sortable and attached to the record. The interface should be pleasant App will be available to multiple users on a server with each user having access protected by individual password/username