Default value for column cannot be changed to NULL

(Doc ID 1644777.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


 When using fast add method to add a column with a default value, as per the following:-

Oracle® Database SQL Language Reference 11g Release 2 (11.2) , Alter Table

and after dropping the NOT NULL constraint , If you tried to change or remove the default value by setting it to NULL  , it will still use the old one.


 Here is an example of the situation:-




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