Separate foreign keys with shared ID space

Let's say I have a type hierarchy: (just an example)

the general entity customer:

CREATE TABLE customer(customer_id int, customer_name varchar(250), customer_type int)

three specific customer subtypes: 1 - business, 2 - home, 3 - university

represented by the following three tables (being subtypes, they share ID space for customer_id)

CREATE TABLE business_customer(customer_id int, business_sector int, ... )
CREATE TABLE home_customer(customer_id int, household_income_bracket int, ...)
CREATE TABLE university_customer(customer_id int, number_students int, ...)

Is it possible to make a foreing key constraint that says:

the customer_id in busineness_customer table must reference only those customer_id in the customer table where customer_type == 1?

the customer_id in home_customer table must reference only those customer_id in the customer table where customer_type == 2?

Thanks!

• Robert