How to Convert DFF Default Value using SQL in VBCS

Summary:

We have a DFF used in Job Offer. This DFF has a default value using SQL (getting value from another DFF in Requisition page).

SQL is this:

select REQ.ATTRIBUTE_NUMBER1

from

IRC_REQUISITIONS_B REQ,

IRC_SUBMISSIONS SUB

where

REQ.REQUISITION_ID=SUB.REQUISITION_ID

AND SUB.SUBMISSION_ID=:{PARAMETER.SUBMISSION_ID}

How do we convert this to VBCS Default Value?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):