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Parameter Validation

When you pass the Default parameter List to a form, Oracle Forms validates the individual parameters against the parameters defined in the called form as follows:

You can modify the Default parameter List by adding and deleting parameters with the Built-in procedures ADD_PARAMETER and DELETE_PARAMETER.

Parameter validation examples

/* To avoid a validation error, you can remove unwanted

** parameters from the List before passing it to a form.
** For example, if Form B requires only parameters p1 and
** p2, you could remove p3 from the List before passing
** the List to Form B.
*/
DECLARE
p_List PARAMLIST;
BEGIN
p_List := GET_PARAMETER_LIST('default');
DELETE_PARAMETER(p_List, 'p3');
OPEN_FORM('form_b', activate, no_session, 'default');
END;


ADD_PARAMETER Built-in

DELETE_PARAMETER Built-in