Select into OBJECT TYPE

Question

Gotta run this some folks as it is driving me nuts. Using the nested table types so I have a simple type declared as this....
CREATE OR REPLACE
TYPE MAGIC_ARRAY AS TABLE OF FLOAT;
I want to use a function which gets the values in the table by column attempts to select into the collection......
FUNCTION getMagicNumbers()
RETURN magic_array
IS
v_magic_array magic_array := magic_array();
BEGIN
v_magic_array.extend(10);
select cbe.Field1,
cbe.Field2,
cbe.Field3,
cbe.Field4,
cbe.Field5,
cbe.Field6,
cbe.Field7,
cbe.Field8,
cbe.Field9,
cbe.Field10
INTO v_magic_array
from cbe_magic_number cbe
WHERE ROWNUM=1;
--Return the value
return (v_magic_array);
end getMagicNumbers;
Looks like it should work but I get ORA-00947: not enough values. If I replace the "INTO v_magic_array" with individual indexed values....
INTO v_magic_array(1),
v_magic_array(2),
v_magic_array(3),
v_magic_array(4),
v_magic_array(5),
v_magic_array(6),
v_magic_array(7),
v_magic_array(8),
v_magic_array(9),
v_magic_array(10),
It compiles and works fine. Do I need to use the indexes for the assignment of values all the time?

Answer 1

you need to specifically list the elements by subscript.It seems simpler to just instantiate a new collection in-line in your SQL.
SQL> SET SERVEROUTPUT ON;
SQL> DECLARE
  2     FUNCTION getmagicnumbers
  3        RETURN magic_array
  4     IS
  5        v_magic_array magic_array;
  6     BEGIN
  7        SELECT magic_array (
  8                  cbe.field1, cbe.field2,
  9                  cbe.field3, cbe.field4,
10                  cbe.field5, cbe.field6,
11                  cbe.field7, cbe.field8,
12                  cbe.field9, cbe.field10)
13        INTO   v_magic_array
14        FROM   cbe_magic_number cbe
15        WHERE  ROWNUM = 1;
16 
17        RETURN v_magic_array;
18     END;
19  BEGIN
20     DBMS_OUTPUT.PUT_LINE (
21        'getmagicnumbers ().COUNT => ' ||
22           getmagicnumbers ().COUNT);
23  END;
24  /
getmagicnumbers ().COUNT => 10
PL/SQL procedure successfully completed.
SQL>