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3.8

how to write a list trigger procesure

Asked by wasabi3689 in PL / SQL, Oracle 8.x, Oracle Database, Oracle 10.x, Oracle 11.x Database

Tags: PL/SQL

I am developing a oracle form ( form version 11.0.0)

I created a list item named "status" on a form. There are 3 elements in the drop-down list
IN_PROGRESS','REQUESTED','CANCELED'

When the form opened, if To cancel a record, simply changed Requested to Cancelled. This is only allowed for records with a status of Requested. An error message will be given if attempted for other statuses.

Here is what I want to do

1. I want to create a trigger but I don't know which trigger is the best fit
when-mouse-click or when-list change
2. create the procedure

if' statu's field value is "requested' needed to canceled by selecting the drop-down list, do the update query.
if status field value is not "requested' and user wants to select the drop-down list to change something else, should come up a message can stop it.

How to develop this procedure?

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how to write a list trigger procesure

Asked by wasabi3689 in PL / SQL, Oracle 8.x, Oracle Database, Oracle 10.x, Oracle 11.x Database

Tags: PL/SQL

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