Retrieve data value from different tables all in a new table

Retrieve data value from different tables all in a new table

Hi,
I would like to know if there is a way to retrieve data values from different tables into a single validation page. For example if we have, 3 steps process

Step 1: Enter customer data

Customer Table
CustomerID:001
FirstName: John
LastName: Smith
with Submit button - data insert in Customer table

Step 2: Enter Appointment

Appointment Table
AppointID:001
CustomerID:001
AppointmentDate: 22/3/2017
AppointmentTime: 10:00


Step 3: Validate
Here what I would like is to retrieve all the information from Step 1 and  2 and be able to validate OR edit each field without having to go to step 1 or 2.

Make sense ?