Get explain plan for query with inline function

Question

I have a query that has an inline function:

with function with_f(p_text in varchar2) return varchar2 is
  begin
    return p_text;
  end;
select with_f(dummy) from dual

Is there a way to get the explain plan for that query in SQL Developer?

I tried this:

explain plan for (
with function with_f(p_text in varchar2) return varchar2 is
  begin
    return p_text;
  end;
select with_f(dummy) from dual
); 
select plan_table_output from table(dbms_xplan.display());

But I get the following error:

SQL Error: ORA-00933: SQL command not properly ended
00933. 00000 -  "SQL command not properly ended"

Answer 1

The parentheses around the statement are wrong. It is

explain plan for stmt

and not

explain plan for (stmt);

---

db<>fiddle