n is either 1 or 0. The default value is 1.
When DDLFinal is enabled (n = 1), a class created by a DDL CREATE TABLE statement is final, meaning it cannot have subclasses.
Changing This Parameter
You can also change DDLFinal with the Config.SQLOpens in a new window class (as described in the class reference) or by editing the CPF in a text editor (as described in the Editing the Active CPF section of the “Introduction to the Configuration Parameter File” chapter in this book).