how to create fact table using dimension tables

[#1]

i have created QVD files ( Dimensions Tables )

as i try to use to create fact tables so itself it creates synthetic key instead of mine

what i want to do is

1)   dimension table User

userid key

name

address

2) dimension  Table Target

targetid key

targetname

area

email

3) fact table

userid

targetid

how to achieve this

[Peter_Cammaert]

Duplicate discussion here: create fact table