PL / SQL UPDATE how to field

There are two ways

Method one: Manual

SELECT * FROM IFSAPP.PURCHASE_ORDER_TAB
WHERE ORDER_NO='1922653'
FOR UPDATE

As shown below

Unlocking

below into 802

Click here to submit

point yes

points below and then complete;

Method Two:

UPDATE 
PURCHASE_ORDER_TAB SET APPROVAL_RULE='802' 
WHERE ORDER_NO='1922653'

Review: In our database only change TAB, the view can not be changed; because it is set!