Accessing PL/SQL table in SQL query

Hello,
Is it possible to use plain SQL to query PL/SQL table? In my case this table is returned by UTL_HTTP.REQUEST_PIECES function, which is defined as:
create or replace package utl_http is
type html_pieces is table of varchar2(2000) index by binary_integer;
function request_pieces (url in varchar2,
max_pieces natural default 32767)
return html_pieces;
pragma restrict_references (request_pieces, wnds, rnds, wnps, rnps);
Generally, I want to access chunks of external data for comparison without using PL/SQL. Thanks ahead for ideas. Ideally, I need working example because my attempts to use TABLE & CAST failed.

I was going to suggest you could try and create your own wrapper around utl_http and use a database type, but then I remembered this excellent thread which covers it better than I ever could - Billy, hope you don't mind passing on your good work!
Re: Error using UTL_HTTP over HTTPS

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<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by (jagdeeps):
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Accessing PL/SQL table in SQL query

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