Clear form not working in multi record form 10g.

Question

I have a multi record block form, when sys_indicator is 'Y' in any of the records, user should not be able to delete this record. In Pre_delete trigger, I put this code
below.
IF :CST_REFERENCE_CODE.SYS_INDICATOR = 'Y'
     THEN
     MESSAGE('You cannot delete this record. Consult your Administrator');
     MESSAGE(' ');
     CLEAR_FORM(NO_VALIDATE);           EXECUTE_QUERY;
--     RAISE FORM_TRIGGER_FAILURE;
     END IF;
I want to clear form an re_query, but the clear form is not working. Help

Answer 1

CLEAR_FORM is a restricted built-in and is not allowed on PRE-DELETE trigger.
the purpose of PRE-DELETE trigger is to do some validation before the actual delete happens and may be delete the child records before the master record can be sucessfully deleted.
it will be better if you could explain that why you need some different functionality on PRE-DELETE trigger, which looks strange. Like, user is trying to delete the record and you want to restrict user from deleting the record if some condition is met and want to re-query. what is the main purpose of doing query here again or why you want to clear the form.