Passing parameters to like condition

Question

hi all,
i am trying to pass a parameters from a form to a report and use this parameter
in a where condition of the sql query , my problem is that i need to use this parameter in a like statment to bring all the records which are like this parameter
its not working...
function AfterPForm return boolean is
V_WHERE VARCHAR2(200);
begin
--:P_called is the parameter sent from the form
IF :P_called IS NOT NULL THEN
     V_WHERE := '%'||:P_called||'%';
END IF;
:P_where := 'AND CALLED like' || V_WHERE;      
return (TRUE);
end;
----- this is the query----
SELECT *
FROM VOIP_CDR
where substr(VOIP_CDR.CALL_INITIATION_TIME,1,8) between :f_date and :t_date
&p_where

Answer 1

What if you change the code like:
:P_where := ' AND CALLED like' || V_WHERE;
so add an additional space in front of the AND statement