Pl/sql expression for default value

Question

I'm trying to run this simple script as a default value using pl/sql expression, but I keep getting this error. THe select statement itself works fine as a sql statement source value, but will not work as a pl/sql exression as a default value. This (:P33_SYSUSERID_CREATED_BY ) is the field name on the form. Any ideas?
begin
select a.id || ', ' || A.NAME_LAST into :P33_SYSUSERID_CREATED_BY from S_USERSV a where a.name_last = 'HAMMAKER';
end;
Error ERR-9132 Error in PLSQL expression for item default code, item=P33_SYSUSERID_CREATED_BY
OK
ORA-06550: line 1, column 27: PLS-00103: Encountered the symbol "BEGIN" when expecting one of the following: ( - + case mod new not null avg count current exists max min prior sql stddev sum variance execute forall merge time timestamp interval date pipe

Answer 1

Sudha,
For a default value type of PL/SQL Expression, you could create a function that accepts an input and returns a value. If the function (not a procedure) is named GET_REFNO, you would call it using an expression in the default value field like:
get_refno(:P3_REFTYPE)
For a default value type of PL/SQL Function Body, you could call your existing procedure with a default value like:declare
    l_value varchar2(32767);
begin
    get_refno(:P3_REFTYPE, l_value);
    return l_value;
end;Scott