...
[Netid] [varchar](30) NULL
) ON [PRIMARY]
CREATE TABLE [dbo].[Orders](
...
[ACCT_NBR] [varchar](10) NULL
) ON [PRIMARY]
Create Function fn_securitypredicate (@ACCT_NBR sysname)
...
dbo.fn_securitypredicate(ACCT_NBR)
on dbo.orders
Testing Result
EXECUTE AS USER = 'bb57';
select * from dbo.predicate_tab order by netid asc
select * from dbo.orders
REVERT;