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    <p>A record datatype is a PL/SQL datatype. SQL doesn't know about it. That's probably why you are getting an error. See this example:</p> <pre><code>SQL&gt; create package mypkg 2 as 3 type myrec is record 4 ( id int 5 , name varchar2(10) 6 ); 7 function f return myrec; 8 end mypkg; 9 / Package created. SQL&gt; create package body mypkg 2 as 3 function f return myrec 4 is 5 r myrec; 6 begin 7 r.id := 1; 8 r.name := 'test'; 9 return r; 10 end f; 11 end mypkg; 12 / Package body created. SQL&gt; desc mypkg FUNCTION F RETURNS RECORD ID NUMBER(38) OUT NAME VARCHAR2(10) OUT SQL&gt; select mypkg.f from dual 2 / select mypkg.f from dual * ERROR at line 1: ORA-00902: invalid datatype </code></pre> <p>The error in SQL I was referring to. You can call it from PL/SQL though:</p> <pre><code>SQL&gt; declare 2 r mypkg.myrec; 3 begin 4 r := mypkg.f; 5 dbms_output.put_line(r.id); 6 dbms_output.put_line(r.name); 7 end; 8 / 1 test PL/SQL procedure successfully completed. </code></pre> <p>If you want to use the function in SQL, then you can create a SQL objecttype. Note that calling your function directly from C# looks way more preferable than insisting on using SQL to do this. But just for the record:</p> <pre><code>SQL&gt; drop package mypkg 2 / Package dropped. SQL&gt; create type myobj is object 2 ( id int 3 , name varchar2(10) 4 ); 5 / Type created. SQL&gt; create package mypkg 2 as 3 function f return myobj; 4 end mypkg; 5 / Package created. SQL&gt; create package body mypkg 2 as 3 function f return myobj 4 is 5 begin 6 return myobj(1,'test'); 7 end f; 8 end mypkg; 9 / Package body created. SQL&gt; select mypkg.f from dual 2 / F(ID, NAME) -------------------------------------------------------------- MYOBJ(1, 'test') 1 row selected. </code></pre> <p>Regards, Rob.</p>
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    1. COI really like your answer. To continue on that path. You can create a collection and cast it in the SQL. -- create a collection type CREATE TYPE myobj_tab AS TABLE OF myobj; -- have the function return a collection type CREATE OR REPLACE function f return myobj_tab IS objtab myobj_tab; begin objtab := myobj_tab(myobj(1,'test')); return objtab; end f; -- CAST it as a table and straight up select from it. SELECT id, name FROM TABLE(CAST(f() AS myobj_tab));
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