how to alter a referenced table

Question

I created two tables product_type and product its script is as below:

create table product_type
(
  product_type_id integer constraint product_type_pk primary key,
  name varchar2(10) not null
);


create table product
(
  product_id integer constraint product_id_pk primary key,
  product_type_id integer constraint products_fk_product_types references product_type(product_type_id),
  product_name varchar2(30),
  description varchar2(50),
  price number(5,2)
);

Now suppose I rename my first table "product_type" to "product_types"

alter table product_type rename to product_types

then what will be its impact in second table because I used a foreign key there which references product_type which is now product_types

What do I have to alter in my second table now?

Answer 1

Oracle takes care of the second table in the database: if you look at the foreign key details in SQL Developer or similar tool you will see that the constraint now references PRODUCT_TYPES. There is nothing for you to do.

However, your script is now out of date - if you want to use that script again somewhere you need to fix all references to PRODUCT_TYPE in it.

Answer 2

There is no effect on the main table. oracle handle all change of the refernces table.