Sybase - Views 'with check' Option

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Views 'with check' Option

What is the use of 'with check' option in views?

Total Answers and Comments: 2

Last Update: November 24, 2008 Asked by: mamtasahu

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Submitted by: dhampack

When you create a view using the with check option clause, each insert and update through the view, is validated against the viewâ€™s selection criteria. If the rows inserted or updated are out of criteria then it fails and gives error message. For ex, you have a view named sybase_books
create view sybase_books as select * from books where type='sybase' with check option.
If you try to insert rows through view where type='oracle' then it will fail, for ex
insert into sybase_books values ('Oracle theory','oracle')

Above answer was rated as good by the following members:
cyril2cyril

October 08, 2008 10:55:51

AjeetPrasad

Member Since: October 2008 Contribution: 1

RE: Views 'with check' Option

This restriction determines what types of modifications you can make through views with check options. If a view has a with check option clause each row inserted or updated through the view must be visible within the view.

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November 23, 2008 22:45:01

dhampack

Member Since: November 2008 Contribution: 6

RE: Views 'with check' Option

When you create a view using the with check option clause each insert and update through the view is validated against the view s selection criteria. If the rows inserted or updated are out of criteria then it fails and gives error message. For ex you have a view named sybase_books
create view sybase_books as select * from books where type 'sybase' with check option.
If you try to insert rows through view where type 'oracle' then it will fail for ex
insert into sybase_books values ('Oracle theory' 'oracle')

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