A situation with one parent table and 3 child tables

Hi,

I have one parent table (*table_p*) with 3 child tables (*table_ch1*,
*table_ch2
*and *table_ch3*). Each record of the parent table can be associated with 1
and only 1 child table records. This means that:

* Some records of the *table_p* will link to records of *table_ch1*
* Some records of the *table_p* will link to records of *table_ch2*
* Some records of the *table_p* will link to records of *table_ch3*

At first look, this does not make very much sense to me. I thought about
considering 3 parent tables, one for each child table. However, the 3
parent tables would have the same exact structure and I would like to know
if there is a workaround for this issue.

Thanks in advance.

Jorge Maldonado