How to check variable if present or not ?
I have a main form and put the :global.gdate, When I call the others form
I want to use the :global.gdate.
I wirte a trigger "when new form instance" for each form (except main form) so I can get :global.date.
But I can only running this program from main form, if I am running the form without the main form, the error message :global.gdate does not exists.
Question:
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Is it posible to check if :global.gdate is exists or not ?
maybe somthing like :
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IF get_variable(:global.gdate) IS NULL THEN --?????????
:global.gdate := sysdate;
END IF;