How to create a Foreign Key with “ON UPDATE CASCADE” on Oracle?

Question

In MS SQL Server it is possible to create a foreign key with ON UPDATE CASCADE option, so whenever you update one of the columns in the primary key, the foreign key

Answer 1

Would a database trigger do the job for you ?

Here is the Oracle doc on the subject of Data Integrity for 11g (just incase you were interested).

Answer 2

Oracle does not allow a Foreign Key constraint with “ON UPDATE CASCADE”.

Here are a couple of options you have.

Create the Foreign Key, and create an “On Update” trigger. Make use of the package below (needs to be installed in the db).

http://tkyte.blogspot.com/2009/10/httpasktomoraclecomtkyteupdatecascade.html

Let me know if you have additional questions or need more information.