Get explain plan for query with inline function

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The 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"

The Solutions:

Below are the methods you can try. The first solution is probably the best. Try others if the first one doesn’t work. Senior developers aren’t just copying/pasting – they read the methods carefully & apply them wisely to each case.

Method 1

The parentheses around the statement are wrong. It is

explain plan for stmt

and not

explain plan for (stmt);

db<>fiddle


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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