Update and Delete with With Check Option

Hi Team,

I need an help with the usage of WITH CHECK OPTION in Update and Delete . I need an example with explanation , as I need to provide an demo on the usage. Any help is really appreciated.
Below is the command I have tried for Insert but not sure about Update and Delete.


INSERT INTO (SELECT department_id, department_name, location_id
   FROM departments WHERE location_id < 2000 WITH CHECK OPTION)
   VALUES (9999, 'Entertainment', 2500);
sam_2012Asked:
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slightwv (䄆 Netminder) Commented:
I'm not sure update is any different than insert.  I really don't see how a delete matters with the check option.  Hopefully another Expert can explain that one.

I would start with the online docs:
http://docs.oracle.com/database/121/SQLRF/statements_8004.htm#SQLRF54786

WITH CHECK OPTION
Specify WITH CHECK OPTION to indicate that Oracle Database prohibits any changes to the table or view that would produce rows that are not included in the subquery. When used in the subquery of a DML statement, you can specify this clause in a subquery in the FROM clause but not in subquery in the WHERE clause

Tom Kyte has a very simple explanation and example:
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:636506144470
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Mark GeerlingsDatabase AdministratorCommented:
The "WITH CHECK OPTION" clause is something that can be included in view definition statements.  You don't use this clause in normal insert or update statements.  And, it certainly doesn't make sense in delete statements!
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