passing path as variable parameter in xmltable

Hi Experts,

I am using xmltable function within a function.
I am passing the column paths as parameter.eg: 'employee1\Name\Fname'
I tried using the input parameter just after path keyword in xmltable query but got error as below:

PL/SQL: ORA-01780: string literal required

How to make it possible to pass paths as dynamic variables ?
DevildibAsked:
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slightwv (䄆 Netminder) Commented:
I don't believe you can pass a dynamic PATH for columns.  You can pass a dynamic XPATH.

Take a look at this example:
/*
drop table tab1 purge;
create table tab1 ( col1 xmltype);

insert into tab1 values('<a><b>Hello</b></a>');
commit;

*/


create or replace function myfunc(p_path in varchar2) return varchar2
is
                retval varchar2(10);
begin

                select myval into retval
                from
                                tab1,
                                xmltable (
                                                p_path
                                                passing col1
                                                columns
                                                                myval varchar2(10) path '.'
                                );

                return retval;
end;
/

show errors

select myfunc('/a/b') from dual;

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