Sub Select in Place Holders Parameters

Hi All,

Is it possible to pass a sub select query to  a parameter place holder

This is my regular query

select * from myview (

'PLACEHOLDER' = ('$$PCode$$', '''VALA'',''VALB'''));

I need to call this view in  a procedure  and i don't want to hard code place holder values

This is my procedure code

code  = select code from tablea;

varout  = select * from myview ( 'PLACEHOLDER' = ('$$PCode$$', :code ));

Thanks in advance